From 627b5bb718b3d846f08878e3ee1af92aaf118bd2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C3=ABl=20Zasso?= <targos@protonmail.com>
Date: Tue, 30 Nov 2021 08:21:53 +0100
Subject: [PATCH] deps: update Acorn to v8.6.0

PR-URL: https://github.com/nodejs/node/pull/40993
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Mohammed Keyvanzadeh <mohammadkeyvanzade94@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
---
 deps/acorn/acorn/CHANGELOG.md   |   12 +-
 deps/acorn/acorn/dist/acorn.js  | 1171 ++++++++++++++++---------------
 deps/acorn/acorn/dist/acorn.mjs | 1161 +++++++++++++++---------------
 deps/acorn/acorn/dist/bin.js    |   26 +-
 deps/acorn/acorn/package.json   |    2 +-
 5 files changed, 1218 insertions(+), 1154 deletions(-)

diff --git a/deps/acorn/acorn/CHANGELOG.md b/deps/acorn/acorn/CHANGELOG.md
index 117c898c8ad156..278fa50c9d83b1 100644
--- a/deps/acorn/acorn/CHANGELOG.md
+++ b/deps/acorn/acorn/CHANGELOG.md
@@ -1,3 +1,13 @@
+## 8.6.0 (2021-11-18)
+
+### Bug fixes
+
+Fix a bug where an object literal with multiple `__proto__` properties would incorrectly be accepted if a later property value held an assigment.
+
+### New features
+
+Support class private fields with the `in` operator.
+
 ## 8.5.0 (2021-09-06)
 
 ### Bug fixes
@@ -36,7 +46,7 @@ A new option, `allowSuperOutsideMethod`, can be used to suppress the error when
 
 Default `allowAwaitOutsideFunction` to true for ECMAScript 2022 an higher.
 
-Add support for the `p` ([indices](https://github.com/tc39/proposal-regexp-match-indices)) regexp flag.
+Add support for the `d` ([indices](https://github.com/tc39/proposal-regexp-match-indices)) regexp flag.
 
 ## 8.2.4 (2021-05-04)
 
diff --git a/deps/acorn/acorn/dist/acorn.js b/deps/acorn/acorn/dist/acorn.js
index 96e3b82d834408..5d9b521ac320bd 100644
--- a/deps/acorn/acorn/dist/acorn.js
+++ b/deps/acorn/acorn/dist/acorn.js
@@ -1,8 +1,8 @@
 (function (global, factory) {
   typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
   typeof define === 'function' && define.amd ? define(['exports'], factory) :
-  (global = global || self, factory(global.acorn = {}));
-}(this, (function (exports) { 'use strict';
+  (global = typeof globalThis !== 'undefined' ? globalThis : global || self, factory(global.acorn = {}));
+})(this, (function (exports) { 'use strict';
 
   // Reserved word lists for various dialects of the language
 
@@ -18,7 +18,7 @@
 
   var ecma5AndLessKeywords = "break case catch continue debugger default do else finally for function if return switch throw try var while with null true false instanceof typeof void delete new in this";
 
-  var keywords = {
+  var keywords$1 = {
     5: ecma5AndLessKeywords,
     "5module": ecma5AndLessKeywords + " export import",
     6: ecma5AndLessKeywords + " const class extends export import super"
@@ -137,17 +137,17 @@
 
   // Map keyword names to token types.
 
-  var keywords$1 = {};
+  var keywords = {};
 
   // Succinct definitions of keyword token types
   function kw(name, options) {
     if ( options === void 0 ) options = {};
 
     options.keyword = name;
-    return keywords$1[name] = new TokenType(name, options)
+    return keywords[name] = new TokenType(name, options)
   }
 
-  var types = {
+  var types$1 = {
     num: new TokenType("num", startsExpr),
     regexp: new TokenType("regexp", startsExpr),
     string: new TokenType("string", startsExpr),
@@ -489,7 +489,7 @@
   var Parser = function Parser(options, input, startPos) {
     this.options = options = getOptions(options);
     this.sourceFile = options.sourceFile;
-    this.keywords = wordsRegexp(keywords[options.ecmaVersion >= 6 ? 6 : options.sourceType === "module" ? "5module" : 5]);
+    this.keywords = wordsRegexp(keywords$1[options.ecmaVersion >= 6 ? 6 : options.sourceType === "module" ? "5module" : 5]);
     var reserved = "";
     if (options.allowReserved !== true) {
       reserved = reservedWords[options.ecmaVersion >= 6 ? 6 : options.ecmaVersion === 5 ? 5 : 3];
@@ -520,7 +520,7 @@
 
     // Properties of the current token:
     // Its type
-    this.type = types.eof;
+    this.type = types$1.eof;
     // For tokens that include more information than their type, the value
     this.value = null;
     // Its start and end offset
@@ -580,8 +580,11 @@
   };
 
   prototypeAccessors.inFunction.get = function () { return (this.currentVarScope().flags & SCOPE_FUNCTION) > 0 };
+
   prototypeAccessors.inGenerator.get = function () { return (this.currentVarScope().flags & SCOPE_GENERATOR) > 0 && !this.currentVarScope().inClassFieldInit };
+
   prototypeAccessors.inAsync.get = function () { return (this.currentVarScope().flags & SCOPE_ASYNC) > 0 && !this.currentVarScope().inClassFieldInit };
+
   prototypeAccessors.canAwait.get = function () {
     for (var i = this.scopeStack.length - 1; i >= 0; i--) {
       var scope = this.scopeStack[i];
@@ -590,20 +593,25 @@
     }
     return (this.inModule && this.options.ecmaVersion >= 13) || this.options.allowAwaitOutsideFunction
   };
+
   prototypeAccessors.allowSuper.get = function () {
     var ref = this.currentThisScope();
       var flags = ref.flags;
       var inClassFieldInit = ref.inClassFieldInit;
     return (flags & SCOPE_SUPER) > 0 || inClassFieldInit || this.options.allowSuperOutsideMethod
   };
+
   prototypeAccessors.allowDirectSuper.get = function () { return (this.currentThisScope().flags & SCOPE_DIRECT_SUPER) > 0 };
+
   prototypeAccessors.treatFunctionsAsVar.get = function () { return this.treatFunctionsAsVarInScope(this.currentScope()) };
+
   prototypeAccessors.allowNewDotTarget.get = function () {
     var ref = this.currentThisScope();
       var flags = ref.flags;
       var inClassFieldInit = ref.inClassFieldInit;
     return (flags & (SCOPE_FUNCTION | SCOPE_CLASS_STATIC_BLOCK)) > 0 || inClassFieldInit
   };
+
   prototypeAccessors.inClassStaticBlock.get = function () {
     return (this.currentVarScope().flags & SCOPE_CLASS_STATIC_BLOCK) > 0
   };
@@ -633,12 +641,12 @@
 
   Object.defineProperties( Parser.prototype, prototypeAccessors );
 
-  var pp = Parser.prototype;
+  var pp$9 = Parser.prototype;
 
   // ## Parser utilities
 
   var literal = /^(?:'((?:\\.|[^'\\])*?)'|"((?:\\.|[^"\\])*?)")/;
-  pp.strictDirective = function(start) {
+  pp$9.strictDirective = function(start) {
     for (;;) {
       // Try to find string literal.
       skipWhiteSpace.lastIndex = start;
@@ -666,7 +674,7 @@
   // Predicate that tests whether the next token is of the given
   // type, and if yes, consumes it as a side effect.
 
-  pp.eat = function(type) {
+  pp$9.eat = function(type) {
     if (this.type === type) {
       this.next();
       return true
@@ -677,13 +685,13 @@
 
   // Tests whether parsed token is a contextual keyword.
 
-  pp.isContextual = function(name) {
-    return this.type === types.name && this.value === name && !this.containsEsc
+  pp$9.isContextual = function(name) {
+    return this.type === types$1.name && this.value === name && !this.containsEsc
   };
 
   // Consumes contextual keyword if possible.
 
-  pp.eatContextual = function(name) {
+  pp$9.eatContextual = function(name) {
     if (!this.isContextual(name)) { return false }
     this.next();
     return true
@@ -691,19 +699,19 @@
 
   // Asserts that following token is given contextual keyword.
 
-  pp.expectContextual = function(name) {
+  pp$9.expectContextual = function(name) {
     if (!this.eatContextual(name)) { this.unexpected(); }
   };
 
   // Test whether a semicolon can be inserted at the current position.
 
-  pp.canInsertSemicolon = function() {
-    return this.type === types.eof ||
-      this.type === types.braceR ||
+  pp$9.canInsertSemicolon = function() {
+    return this.type === types$1.eof ||
+      this.type === types$1.braceR ||
       lineBreak.test(this.input.slice(this.lastTokEnd, this.start))
   };
 
-  pp.insertSemicolon = function() {
+  pp$9.insertSemicolon = function() {
     if (this.canInsertSemicolon()) {
       if (this.options.onInsertedSemicolon)
         { this.options.onInsertedSemicolon(this.lastTokEnd, this.lastTokEndLoc); }
@@ -714,11 +722,11 @@
   // Consume a semicolon, or, failing that, see if we are allowed to
   // pretend that there is a semicolon at this position.
 
-  pp.semicolon = function() {
-    if (!this.eat(types.semi) && !this.insertSemicolon()) { this.unexpected(); }
+  pp$9.semicolon = function() {
+    if (!this.eat(types$1.semi) && !this.insertSemicolon()) { this.unexpected(); }
   };
 
-  pp.afterTrailingComma = function(tokType, notNext) {
+  pp$9.afterTrailingComma = function(tokType, notNext) {
     if (this.type === tokType) {
       if (this.options.onTrailingComma)
         { this.options.onTrailingComma(this.lastTokStart, this.lastTokStartLoc); }
@@ -731,13 +739,13 @@
   // Expect a token of a given type. If found, consume it, otherwise,
   // raise an unexpected token error.
 
-  pp.expect = function(type) {
+  pp$9.expect = function(type) {
     this.eat(type) || this.unexpected();
   };
 
   // Raise an unexpected token error.
 
-  pp.unexpected = function(pos) {
+  pp$9.unexpected = function(pos) {
     this.raise(pos != null ? pos : this.start, "Unexpected token");
   };
 
@@ -750,7 +758,7 @@
       -1;
   }
 
-  pp.checkPatternErrors = function(refDestructuringErrors, isAssign) {
+  pp$9.checkPatternErrors = function(refDestructuringErrors, isAssign) {
     if (!refDestructuringErrors) { return }
     if (refDestructuringErrors.trailingComma > -1)
       { this.raiseRecoverable(refDestructuringErrors.trailingComma, "Comma is not permitted after the rest element"); }
@@ -758,7 +766,7 @@
     if (parens > -1) { this.raiseRecoverable(parens, "Parenthesized pattern"); }
   };
 
-  pp.checkExpressionErrors = function(refDestructuringErrors, andThrow) {
+  pp$9.checkExpressionErrors = function(refDestructuringErrors, andThrow) {
     if (!refDestructuringErrors) { return false }
     var shorthandAssign = refDestructuringErrors.shorthandAssign;
     var doubleProto = refDestructuringErrors.doubleProto;
@@ -769,20 +777,20 @@
       { this.raiseRecoverable(doubleProto, "Redefinition of __proto__ property"); }
   };
 
-  pp.checkYieldAwaitInDefaultParams = function() {
+  pp$9.checkYieldAwaitInDefaultParams = function() {
     if (this.yieldPos && (!this.awaitPos || this.yieldPos < this.awaitPos))
       { this.raise(this.yieldPos, "Yield expression cannot be a default value"); }
     if (this.awaitPos)
       { this.raise(this.awaitPos, "Await expression cannot be a default value"); }
   };
 
-  pp.isSimpleAssignTarget = function(expr) {
+  pp$9.isSimpleAssignTarget = function(expr) {
     if (expr.type === "ParenthesizedExpression")
       { return this.isSimpleAssignTarget(expr.expression) }
     return expr.type === "Identifier" || expr.type === "MemberExpression"
   };
 
-  var pp$1 = Parser.prototype;
+  var pp$8 = Parser.prototype;
 
   // ### Statement parsing
 
@@ -791,10 +799,10 @@
   // `program` argument.  If present, the statements will be appended
   // to its body instead of creating a new node.
 
-  pp$1.parseTopLevel = function(node) {
+  pp$8.parseTopLevel = function(node) {
     var exports = Object.create(null);
     if (!node.body) { node.body = []; }
-    while (this.type !== types.eof) {
+    while (this.type !== types$1.eof) {
       var stmt = this.parseStatement(null, true, exports);
       node.body.push(stmt);
     }
@@ -813,7 +821,7 @@
 
   var loopLabel = {kind: "loop"}, switchLabel = {kind: "switch"};
 
-  pp$1.isLet = function(context) {
+  pp$8.isLet = function(context) {
     if (this.options.ecmaVersion < 6 || !this.isContextual("let")) { return false }
     skipWhiteSpace.lastIndex = this.pos;
     var skip = skipWhiteSpace.exec(this.input);
@@ -839,7 +847,7 @@
   // check 'async [no LineTerminator here] function'
   // - 'async /*foo*/ function' is OK.
   // - 'async /*\n*/ function' is invalid.
-  pp$1.isAsyncFunction = function() {
+  pp$8.isAsyncFunction = function() {
     if (this.options.ecmaVersion < 8 || !this.isContextual("async"))
       { return false }
 
@@ -859,11 +867,11 @@
   // `if (foo) /blah/.exec(foo)`, where looking at the previous token
   // does not help.
 
-  pp$1.parseStatement = function(context, topLevel, exports) {
+  pp$8.parseStatement = function(context, topLevel, exports) {
     var starttype = this.type, node = this.startNode(), kind;
 
     if (this.isLet(context)) {
-      starttype = types._var;
+      starttype = types$1._var;
       kind = "let";
     }
 
@@ -872,35 +880,35 @@
     // complexity.
 
     switch (starttype) {
-    case types._break: case types._continue: return this.parseBreakContinueStatement(node, starttype.keyword)
-    case types._debugger: return this.parseDebuggerStatement(node)
-    case types._do: return this.parseDoStatement(node)
-    case types._for: return this.parseForStatement(node)
-    case types._function:
+    case types$1._break: case types$1._continue: return this.parseBreakContinueStatement(node, starttype.keyword)
+    case types$1._debugger: return this.parseDebuggerStatement(node)
+    case types$1._do: return this.parseDoStatement(node)
+    case types$1._for: return this.parseForStatement(node)
+    case types$1._function:
       // Function as sole body of either an if statement or a labeled statement
       // works, but not when it is part of a labeled statement that is the sole
       // body of an if statement.
       if ((context && (this.strict || context !== "if" && context !== "label")) && this.options.ecmaVersion >= 6) { this.unexpected(); }
       return this.parseFunctionStatement(node, false, !context)
-    case types._class:
+    case types$1._class:
       if (context) { this.unexpected(); }
       return this.parseClass(node, true)
-    case types._if: return this.parseIfStatement(node)
-    case types._return: return this.parseReturnStatement(node)
-    case types._switch: return this.parseSwitchStatement(node)
-    case types._throw: return this.parseThrowStatement(node)
-    case types._try: return this.parseTryStatement(node)
-    case types._const: case types._var:
+    case types$1._if: return this.parseIfStatement(node)
+    case types$1._return: return this.parseReturnStatement(node)
+    case types$1._switch: return this.parseSwitchStatement(node)
+    case types$1._throw: return this.parseThrowStatement(node)
+    case types$1._try: return this.parseTryStatement(node)
+    case types$1._const: case types$1._var:
       kind = kind || this.value;
       if (context && kind !== "var") { this.unexpected(); }
       return this.parseVarStatement(node, kind)
-    case types._while: return this.parseWhileStatement(node)
-    case types._with: return this.parseWithStatement(node)
-    case types.braceL: return this.parseBlock(true, node)
-    case types.semi: return this.parseEmptyStatement(node)
-    case types._export:
-    case types._import:
-      if (this.options.ecmaVersion > 10 && starttype === types._import) {
+    case types$1._while: return this.parseWhileStatement(node)
+    case types$1._with: return this.parseWithStatement(node)
+    case types$1.braceL: return this.parseBlock(true, node)
+    case types$1.semi: return this.parseEmptyStatement(node)
+    case types$1._export:
+    case types$1._import:
+      if (this.options.ecmaVersion > 10 && starttype === types$1._import) {
         skipWhiteSpace.lastIndex = this.pos;
         var skip = skipWhiteSpace.exec(this.input);
         var next = this.pos + skip[0].length, nextCh = this.input.charCodeAt(next);
@@ -914,7 +922,7 @@
         if (!this.inModule)
           { this.raise(this.start, "'import' and 'export' may appear only with 'sourceType: module'"); }
       }
-      return starttype === types._import ? this.parseImport(node) : this.parseExport(node, exports)
+      return starttype === types$1._import ? this.parseImport(node) : this.parseExport(node, exports)
 
       // If the statement does not start with a statement keyword or a
       // brace, it's an ExpressionStatement or LabeledStatement. We
@@ -929,17 +937,17 @@
       }
 
       var maybeName = this.value, expr = this.parseExpression();
-      if (starttype === types.name && expr.type === "Identifier" && this.eat(types.colon))
+      if (starttype === types$1.name && expr.type === "Identifier" && this.eat(types$1.colon))
         { return this.parseLabeledStatement(node, maybeName, expr, context) }
       else { return this.parseExpressionStatement(node, expr) }
     }
   };
 
-  pp$1.parseBreakContinueStatement = function(node, keyword) {
+  pp$8.parseBreakContinueStatement = function(node, keyword) {
     var isBreak = keyword === "break";
     this.next();
-    if (this.eat(types.semi) || this.insertSemicolon()) { node.label = null; }
-    else if (this.type !== types.name) { this.unexpected(); }
+    if (this.eat(types$1.semi) || this.insertSemicolon()) { node.label = null; }
+    else if (this.type !== types$1.name) { this.unexpected(); }
     else {
       node.label = this.parseIdent();
       this.semicolon();
@@ -959,21 +967,21 @@
     return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement")
   };
 
-  pp$1.parseDebuggerStatement = function(node) {
+  pp$8.parseDebuggerStatement = function(node) {
     this.next();
     this.semicolon();
     return this.finishNode(node, "DebuggerStatement")
   };
 
-  pp$1.parseDoStatement = function(node) {
+  pp$8.parseDoStatement = function(node) {
     this.next();
     this.labels.push(loopLabel);
     node.body = this.parseStatement("do");
     this.labels.pop();
-    this.expect(types._while);
+    this.expect(types$1._while);
     node.test = this.parseParenExpression();
     if (this.options.ecmaVersion >= 6)
-      { this.eat(types.semi); }
+      { this.eat(types$1.semi); }
     else
       { this.semicolon(); }
     return this.finishNode(node, "DoWhileStatement")
@@ -987,25 +995,25 @@
   // part (semicolon immediately after the opening parenthesis), it
   // is a regular `for` loop.
 
-  pp$1.parseForStatement = function(node) {
+  pp$8.parseForStatement = function(node) {
     this.next();
     var awaitAt = (this.options.ecmaVersion >= 9 && this.canAwait && this.eatContextual("await")) ? this.lastTokStart : -1;
     this.labels.push(loopLabel);
     this.enterScope(0);
-    this.expect(types.parenL);
-    if (this.type === types.semi) {
+    this.expect(types$1.parenL);
+    if (this.type === types$1.semi) {
       if (awaitAt > -1) { this.unexpected(awaitAt); }
       return this.parseFor(node, null)
     }
     var isLet = this.isLet();
-    if (this.type === types._var || this.type === types._const || isLet) {
+    if (this.type === types$1._var || this.type === types$1._const || isLet) {
       var init$1 = this.startNode(), kind = isLet ? "let" : this.value;
       this.next();
       this.parseVar(init$1, true, kind);
       this.finishNode(init$1, "VariableDeclaration");
-      if ((this.type === types._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) && init$1.declarations.length === 1) {
+      if ((this.type === types$1._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) && init$1.declarations.length === 1) {
         if (this.options.ecmaVersion >= 9) {
-          if (this.type === types._in) {
+          if (this.type === types$1._in) {
             if (awaitAt > -1) { this.unexpected(awaitAt); }
           } else { node.await = awaitAt > -1; }
         }
@@ -1017,9 +1025,9 @@
     var startsWithLet = this.isContextual("let"), isForOf = false;
     var refDestructuringErrors = new DestructuringErrors;
     var init = this.parseExpression(awaitAt > -1 ? "await" : true, refDestructuringErrors);
-    if (this.type === types._in || (isForOf = this.options.ecmaVersion >= 6 && this.isContextual("of"))) {
+    if (this.type === types$1._in || (isForOf = this.options.ecmaVersion >= 6 && this.isContextual("of"))) {
       if (this.options.ecmaVersion >= 9) {
-        if (this.type === types._in) {
+        if (this.type === types$1._in) {
           if (awaitAt > -1) { this.unexpected(awaitAt); }
         } else { node.await = awaitAt > -1; }
       }
@@ -1034,21 +1042,21 @@
     return this.parseFor(node, init)
   };
 
-  pp$1.parseFunctionStatement = function(node, isAsync, declarationPosition) {
+  pp$8.parseFunctionStatement = function(node, isAsync, declarationPosition) {
     this.next();
     return this.parseFunction(node, FUNC_STATEMENT | (declarationPosition ? 0 : FUNC_HANGING_STATEMENT), false, isAsync)
   };
 
-  pp$1.parseIfStatement = function(node) {
+  pp$8.parseIfStatement = function(node) {
     this.next();
     node.test = this.parseParenExpression();
     // allow function declarations in branches, but only in non-strict mode
     node.consequent = this.parseStatement("if");
-    node.alternate = this.eat(types._else) ? this.parseStatement("if") : null;
+    node.alternate = this.eat(types$1._else) ? this.parseStatement("if") : null;
     return this.finishNode(node, "IfStatement")
   };
 
-  pp$1.parseReturnStatement = function(node) {
+  pp$8.parseReturnStatement = function(node) {
     if (!this.inFunction && !this.options.allowReturnOutsideFunction)
       { this.raise(this.start, "'return' outside of function"); }
     this.next();
@@ -1057,16 +1065,16 @@
     // optional arguments, we eagerly look for a semicolon or the
     // possibility to insert one.
 
-    if (this.eat(types.semi) || this.insertSemicolon()) { node.argument = null; }
+    if (this.eat(types$1.semi) || this.insertSemicolon()) { node.argument = null; }
     else { node.argument = this.parseExpression(); this.semicolon(); }
     return this.finishNode(node, "ReturnStatement")
   };
 
-  pp$1.parseSwitchStatement = function(node) {
+  pp$8.parseSwitchStatement = function(node) {
     this.next();
     node.discriminant = this.parseParenExpression();
     node.cases = [];
-    this.expect(types.braceL);
+    this.expect(types$1.braceL);
     this.labels.push(switchLabel);
     this.enterScope(0);
 
@@ -1075,9 +1083,9 @@
     // adding statements to.
 
     var cur;
-    for (var sawDefault = false; this.type !== types.braceR;) {
-      if (this.type === types._case || this.type === types._default) {
-        var isCase = this.type === types._case;
+    for (var sawDefault = false; this.type !== types$1.braceR;) {
+      if (this.type === types$1._case || this.type === types$1._default) {
+        var isCase = this.type === types$1._case;
         if (cur) { this.finishNode(cur, "SwitchCase"); }
         node.cases.push(cur = this.startNode());
         cur.consequent = [];
@@ -1089,7 +1097,7 @@
           sawDefault = true;
           cur.test = null;
         }
-        this.expect(types.colon);
+        this.expect(types$1.colon);
       } else {
         if (!cur) { this.unexpected(); }
         cur.consequent.push(this.parseStatement(null));
@@ -1102,7 +1110,7 @@
     return this.finishNode(node, "SwitchStatement")
   };
 
-  pp$1.parseThrowStatement = function(node) {
+  pp$8.parseThrowStatement = function(node) {
     this.next();
     if (lineBreak.test(this.input.slice(this.lastTokEnd, this.start)))
       { this.raise(this.lastTokEnd, "Illegal newline after throw"); }
@@ -1113,21 +1121,21 @@
 
   // Reused empty array added for node fields that are always empty.
 
-  var empty = [];
+  var empty$1 = [];
 
-  pp$1.parseTryStatement = function(node) {
+  pp$8.parseTryStatement = function(node) {
     this.next();
     node.block = this.parseBlock();
     node.handler = null;
-    if (this.type === types._catch) {
+    if (this.type === types$1._catch) {
       var clause = this.startNode();
       this.next();
-      if (this.eat(types.parenL)) {
+      if (this.eat(types$1.parenL)) {
         clause.param = this.parseBindingAtom();
         var simple = clause.param.type === "Identifier";
         this.enterScope(simple ? SCOPE_SIMPLE_CATCH : 0);
         this.checkLValPattern(clause.param, simple ? BIND_SIMPLE_CATCH : BIND_LEXICAL);
-        this.expect(types.parenR);
+        this.expect(types$1.parenR);
       } else {
         if (this.options.ecmaVersion < 10) { this.unexpected(); }
         clause.param = null;
@@ -1137,20 +1145,20 @@
       this.exitScope();
       node.handler = this.finishNode(clause, "CatchClause");
     }
-    node.finalizer = this.eat(types._finally) ? this.parseBlock() : null;
+    node.finalizer = this.eat(types$1._finally) ? this.parseBlock() : null;
     if (!node.handler && !node.finalizer)
       { this.raise(node.start, "Missing catch or finally clause"); }
     return this.finishNode(node, "TryStatement")
   };
 
-  pp$1.parseVarStatement = function(node, kind) {
+  pp$8.parseVarStatement = function(node, kind) {
     this.next();
     this.parseVar(node, false, kind);
     this.semicolon();
     return this.finishNode(node, "VariableDeclaration")
   };
 
-  pp$1.parseWhileStatement = function(node) {
+  pp$8.parseWhileStatement = function(node) {
     this.next();
     node.test = this.parseParenExpression();
     this.labels.push(loopLabel);
@@ -1159,7 +1167,7 @@
     return this.finishNode(node, "WhileStatement")
   };
 
-  pp$1.parseWithStatement = function(node) {
+  pp$8.parseWithStatement = function(node) {
     if (this.strict) { this.raise(this.start, "'with' in strict mode"); }
     this.next();
     node.object = this.parseParenExpression();
@@ -1167,12 +1175,12 @@
     return this.finishNode(node, "WithStatement")
   };
 
-  pp$1.parseEmptyStatement = function(node) {
+  pp$8.parseEmptyStatement = function(node) {
     this.next();
     return this.finishNode(node, "EmptyStatement")
   };
 
-  pp$1.parseLabeledStatement = function(node, maybeName, expr, context) {
+  pp$8.parseLabeledStatement = function(node, maybeName, expr, context) {
     for (var i$1 = 0, list = this.labels; i$1 < list.length; i$1 += 1)
       {
       var label = list[i$1];
@@ -1180,7 +1188,7 @@
       if (label.name === maybeName)
         { this.raise(expr.start, "Label '" + maybeName + "' is already declared");
     } }
-    var kind = this.type.isLoop ? "loop" : this.type === types._switch ? "switch" : null;
+    var kind = this.type.isLoop ? "loop" : this.type === types$1._switch ? "switch" : null;
     for (var i = this.labels.length - 1; i >= 0; i--) {
       var label$1 = this.labels[i];
       if (label$1.statementStart === node.start) {
@@ -1196,7 +1204,7 @@
     return this.finishNode(node, "LabeledStatement")
   };
 
-  pp$1.parseExpressionStatement = function(node, expr) {
+  pp$8.parseExpressionStatement = function(node, expr) {
     node.expression = expr;
     this.semicolon();
     return this.finishNode(node, "ExpressionStatement")
@@ -1206,14 +1214,14 @@
   // strict"` declarations when `allowStrict` is true (used for
   // function bodies).
 
-  pp$1.parseBlock = function(createNewLexicalScope, node, exitStrict) {
+  pp$8.parseBlock = function(createNewLexicalScope, node, exitStrict) {
     if ( createNewLexicalScope === void 0 ) createNewLexicalScope = true;
     if ( node === void 0 ) node = this.startNode();
 
     node.body = [];
-    this.expect(types.braceL);
+    this.expect(types$1.braceL);
     if (createNewLexicalScope) { this.enterScope(0); }
-    while (this.type !== types.braceR) {
+    while (this.type !== types$1.braceR) {
       var stmt = this.parseStatement(null);
       node.body.push(stmt);
     }
@@ -1227,13 +1235,13 @@
   // `parseStatement` will already have parsed the init statement or
   // expression.
 
-  pp$1.parseFor = function(node, init) {
+  pp$8.parseFor = function(node, init) {
     node.init = init;
-    this.expect(types.semi);
-    node.test = this.type === types.semi ? null : this.parseExpression();
-    this.expect(types.semi);
-    node.update = this.type === types.parenR ? null : this.parseExpression();
-    this.expect(types.parenR);
+    this.expect(types$1.semi);
+    node.test = this.type === types$1.semi ? null : this.parseExpression();
+    this.expect(types$1.semi);
+    node.update = this.type === types$1.parenR ? null : this.parseExpression();
+    this.expect(types$1.parenR);
     node.body = this.parseStatement("for");
     this.exitScope();
     this.labels.pop();
@@ -1243,8 +1251,8 @@
   // Parse a `for`/`in` and `for`/`of` loop, which are almost
   // same from parser's perspective.
 
-  pp$1.parseForIn = function(node, init) {
-    var isForIn = this.type === types._in;
+  pp$8.parseForIn = function(node, init) {
+    var isForIn = this.type === types$1._in;
     this.next();
 
     if (
@@ -1265,7 +1273,7 @@
     }
     node.left = init;
     node.right = isForIn ? this.parseExpression() : this.parseMaybeAssign();
-    this.expect(types.parenR);
+    this.expect(types$1.parenR);
     node.body = this.parseStatement("for");
     this.exitScope();
     this.labels.pop();
@@ -1274,28 +1282,28 @@
 
   // Parse a list of variable declarations.
 
-  pp$1.parseVar = function(node, isFor, kind) {
+  pp$8.parseVar = function(node, isFor, kind) {
     node.declarations = [];
     node.kind = kind;
     for (;;) {
       var decl = this.startNode();
       this.parseVarId(decl, kind);
-      if (this.eat(types.eq)) {
+      if (this.eat(types$1.eq)) {
         decl.init = this.parseMaybeAssign(isFor);
-      } else if (kind === "const" && !(this.type === types._in || (this.options.ecmaVersion >= 6 && this.isContextual("of")))) {
+      } else if (kind === "const" && !(this.type === types$1._in || (this.options.ecmaVersion >= 6 && this.isContextual("of")))) {
         this.unexpected();
-      } else if (decl.id.type !== "Identifier" && !(isFor && (this.type === types._in || this.isContextual("of")))) {
+      } else if (decl.id.type !== "Identifier" && !(isFor && (this.type === types$1._in || this.isContextual("of")))) {
         this.raise(this.lastTokEnd, "Complex binding patterns require an initialization value");
       } else {
         decl.init = null;
       }
       node.declarations.push(this.finishNode(decl, "VariableDeclarator"));
-      if (!this.eat(types.comma)) { break }
+      if (!this.eat(types$1.comma)) { break }
     }
     return node
   };
 
-  pp$1.parseVarId = function(decl, kind) {
+  pp$8.parseVarId = function(decl, kind) {
     decl.id = this.parseBindingAtom();
     this.checkLValPattern(decl.id, kind === "var" ? BIND_VAR : BIND_LEXICAL, false);
   };
@@ -1306,18 +1314,18 @@
   // `statement & FUNC_STATEMENT`).
 
   // Remove `allowExpressionBody` for 7.0.0, as it is only called with false
-  pp$1.parseFunction = function(node, statement, allowExpressionBody, isAsync, forInit) {
+  pp$8.parseFunction = function(node, statement, allowExpressionBody, isAsync, forInit) {
     this.initFunction(node);
     if (this.options.ecmaVersion >= 9 || this.options.ecmaVersion >= 6 && !isAsync) {
-      if (this.type === types.star && (statement & FUNC_HANGING_STATEMENT))
+      if (this.type === types$1.star && (statement & FUNC_HANGING_STATEMENT))
         { this.unexpected(); }
-      node.generator = this.eat(types.star);
+      node.generator = this.eat(types$1.star);
     }
     if (this.options.ecmaVersion >= 8)
       { node.async = !!isAsync; }
 
     if (statement & FUNC_STATEMENT) {
-      node.id = (statement & FUNC_NULLABLE_ID) && this.type !== types.name ? null : this.parseIdent();
+      node.id = (statement & FUNC_NULLABLE_ID) && this.type !== types$1.name ? null : this.parseIdent();
       if (node.id && !(statement & FUNC_HANGING_STATEMENT))
         // If it is a regular function declaration in sloppy mode, then it is
         // subject to Annex B semantics (BIND_FUNCTION). Otherwise, the binding
@@ -1333,7 +1341,7 @@
     this.enterScope(functionFlags(node.async, node.generator));
 
     if (!(statement & FUNC_STATEMENT))
-      { node.id = this.type === types.name ? this.parseIdent() : null; }
+      { node.id = this.type === types$1.name ? this.parseIdent() : null; }
 
     this.parseFunctionParams(node);
     this.parseFunctionBody(node, allowExpressionBody, false, forInit);
@@ -1344,16 +1352,16 @@
     return this.finishNode(node, (statement & FUNC_STATEMENT) ? "FunctionDeclaration" : "FunctionExpression")
   };
 
-  pp$1.parseFunctionParams = function(node) {
-    this.expect(types.parenL);
-    node.params = this.parseBindingList(types.parenR, false, this.options.ecmaVersion >= 8);
+  pp$8.parseFunctionParams = function(node) {
+    this.expect(types$1.parenL);
+    node.params = this.parseBindingList(types$1.parenR, false, this.options.ecmaVersion >= 8);
     this.checkYieldAwaitInDefaultParams();
   };
 
   // Parse a class declaration or literal (depending on the
   // `isStatement` parameter).
 
-  pp$1.parseClass = function(node, isStatement) {
+  pp$8.parseClass = function(node, isStatement) {
     this.next();
 
     // ecma-262 14.6 Class Definitions
@@ -1367,8 +1375,8 @@
     var classBody = this.startNode();
     var hadConstructor = false;
     classBody.body = [];
-    this.expect(types.braceL);
-    while (this.type !== types.braceR) {
+    this.expect(types$1.braceL);
+    while (this.type !== types$1.braceR) {
       var element = this.parseClassElement(node.superClass !== null);
       if (element) {
         classBody.body.push(element);
@@ -1387,8 +1395,8 @@
     return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression")
   };
 
-  pp$1.parseClassElement = function(constructorAllowsSuper) {
-    if (this.eat(types.semi)) { return null }
+  pp$8.parseClassElement = function(constructorAllowsSuper) {
+    if (this.eat(types$1.semi)) { return null }
 
     var ecmaVersion = this.options.ecmaVersion;
     var node = this.startNode();
@@ -1400,11 +1408,11 @@
 
     if (this.eatContextual("static")) {
       // Parse static init block
-      if (ecmaVersion >= 13 && this.eat(types.braceL)) {
+      if (ecmaVersion >= 13 && this.eat(types$1.braceL)) {
         this.parseClassStaticBlock(node);
         return node
       }
-      if (this.isClassElementNameStart() || this.type === types.star) {
+      if (this.isClassElementNameStart() || this.type === types$1.star) {
         isStatic = true;
       } else {
         keyName = "static";
@@ -1412,13 +1420,13 @@
     }
     node.static = isStatic;
     if (!keyName && ecmaVersion >= 8 && this.eatContextual("async")) {
-      if ((this.isClassElementNameStart() || this.type === types.star) && !this.canInsertSemicolon()) {
+      if ((this.isClassElementNameStart() || this.type === types$1.star) && !this.canInsertSemicolon()) {
         isAsync = true;
       } else {
         keyName = "async";
       }
     }
-    if (!keyName && (ecmaVersion >= 9 || !isAsync) && this.eat(types.star)) {
+    if (!keyName && (ecmaVersion >= 9 || !isAsync) && this.eat(types$1.star)) {
       isGenerator = true;
     }
     if (!keyName && !isAsync && !isGenerator) {
@@ -1445,7 +1453,7 @@
     }
 
     // Parse element value
-    if (ecmaVersion < 13 || this.type === types.parenL || kind !== "method" || isGenerator || isAsync) {
+    if (ecmaVersion < 13 || this.type === types$1.parenL || kind !== "method" || isGenerator || isAsync) {
       var isConstructor = !node.static && checkKeyName(node, "constructor");
       var allowsDirectSuper = isConstructor && constructorAllowsSuper;
       // Couldn't move this check into the 'parseClassMethod' method for backward compatibility.
@@ -1459,19 +1467,19 @@
     return node
   };
 
-  pp$1.isClassElementNameStart = function() {
+  pp$8.isClassElementNameStart = function() {
     return (
-      this.type === types.name ||
-      this.type === types.privateId ||
-      this.type === types.num ||
-      this.type === types.string ||
-      this.type === types.bracketL ||
+      this.type === types$1.name ||
+      this.type === types$1.privateId ||
+      this.type === types$1.num ||
+      this.type === types$1.string ||
+      this.type === types$1.bracketL ||
       this.type.keyword
     )
   };
 
-  pp$1.parseClassElementName = function(element) {
-    if (this.type === types.privateId) {
+  pp$8.parseClassElementName = function(element) {
+    if (this.type === types$1.privateId) {
       if (this.value === "constructor") {
         this.raise(this.start, "Classes can't have an element named '#constructor'");
       }
@@ -1482,7 +1490,7 @@
     }
   };
 
-  pp$1.parseClassMethod = function(method, isGenerator, isAsync, allowsDirectSuper) {
+  pp$8.parseClassMethod = function(method, isGenerator, isAsync, allowsDirectSuper) {
     // Check key and flags
     var key = method.key;
     if (method.kind === "constructor") {
@@ -1506,14 +1514,14 @@
     return this.finishNode(method, "MethodDefinition")
   };
 
-  pp$1.parseClassField = function(field) {
+  pp$8.parseClassField = function(field) {
     if (checkKeyName(field, "constructor")) {
       this.raise(field.key.start, "Classes can't have a field named 'constructor'");
     } else if (field.static && checkKeyName(field, "prototype")) {
       this.raise(field.key.start, "Classes can't have a static field named 'prototype'");
     }
 
-    if (this.eat(types.eq)) {
+    if (this.eat(types$1.eq)) {
       // To raise SyntaxError if 'arguments' exists in the initializer.
       var scope = this.currentThisScope();
       var inClassFieldInit = scope.inClassFieldInit;
@@ -1528,13 +1536,13 @@
     return this.finishNode(field, "PropertyDefinition")
   };
 
-  pp$1.parseClassStaticBlock = function(node) {
+  pp$8.parseClassStaticBlock = function(node) {
     node.body = [];
 
     var oldLabels = this.labels;
     this.labels = [];
     this.enterScope(SCOPE_CLASS_STATIC_BLOCK | SCOPE_SUPER);
-    while (this.type !== types.braceR) {
+    while (this.type !== types$1.braceR) {
       var stmt = this.parseStatement(null);
       node.body.push(stmt);
     }
@@ -1545,8 +1553,8 @@
     return this.finishNode(node, "StaticBlock")
   };
 
-  pp$1.parseClassId = function(node, isStatement) {
-    if (this.type === types.name) {
+  pp$8.parseClassId = function(node, isStatement) {
+    if (this.type === types$1.name) {
       node.id = this.parseIdent();
       if (isStatement)
         { this.checkLValSimple(node.id, BIND_LEXICAL, false); }
@@ -1557,17 +1565,17 @@
     }
   };
 
-  pp$1.parseClassSuper = function(node) {
-    node.superClass = this.eat(types._extends) ? this.parseExprSubscripts(false) : null;
+  pp$8.parseClassSuper = function(node) {
+    node.superClass = this.eat(types$1._extends) ? this.parseExprSubscripts(false) : null;
   };
 
-  pp$1.enterClassBody = function() {
+  pp$8.enterClassBody = function() {
     var element = {declared: Object.create(null), used: []};
     this.privateNameStack.push(element);
     return element.declared
   };
 
-  pp$1.exitClassBody = function() {
+  pp$8.exitClassBody = function() {
     var ref = this.privateNameStack.pop();
     var declared = ref.declared;
     var used = ref.used;
@@ -1622,10 +1630,10 @@
 
   // Parses module export declaration.
 
-  pp$1.parseExport = function(node, exports) {
+  pp$8.parseExport = function(node, exports) {
     this.next();
     // export * from '...'
-    if (this.eat(types.star)) {
+    if (this.eat(types$1.star)) {
       if (this.options.ecmaVersion >= 11) {
         if (this.eatContextual("as")) {
           node.exported = this.parseIdent(true);
@@ -1635,20 +1643,20 @@
         }
       }
       this.expectContextual("from");
-      if (this.type !== types.string) { this.unexpected(); }
+      if (this.type !== types$1.string) { this.unexpected(); }
       node.source = this.parseExprAtom();
       this.semicolon();
       return this.finishNode(node, "ExportAllDeclaration")
     }
-    if (this.eat(types._default)) { // export default ...
+    if (this.eat(types$1._default)) { // export default ...
       this.checkExport(exports, "default", this.lastTokStart);
       var isAsync;
-      if (this.type === types._function || (isAsync = this.isAsyncFunction())) {
+      if (this.type === types$1._function || (isAsync = this.isAsyncFunction())) {
         var fNode = this.startNode();
         this.next();
         if (isAsync) { this.next(); }
         node.declaration = this.parseFunction(fNode, FUNC_STATEMENT | FUNC_NULLABLE_ID, false, isAsync);
-      } else if (this.type === types._class) {
+      } else if (this.type === types$1._class) {
         var cNode = this.startNode();
         node.declaration = this.parseClass(cNode, "nullableID");
       } else {
@@ -1670,7 +1678,7 @@
       node.declaration = null;
       node.specifiers = this.parseExportSpecifiers(exports);
       if (this.eatContextual("from")) {
-        if (this.type !== types.string) { this.unexpected(); }
+        if (this.type !== types$1.string) { this.unexpected(); }
         node.source = this.parseExprAtom();
       } else {
         for (var i = 0, list = node.specifiers; i < list.length; i += 1) {
@@ -1689,14 +1697,14 @@
     return this.finishNode(node, "ExportNamedDeclaration")
   };
 
-  pp$1.checkExport = function(exports, name, pos) {
+  pp$8.checkExport = function(exports, name, pos) {
     if (!exports) { return }
     if (has(exports, name))
       { this.raiseRecoverable(pos, "Duplicate export '" + name + "'"); }
     exports[name] = true;
   };
 
-  pp$1.checkPatternExport = function(exports, pat) {
+  pp$8.checkPatternExport = function(exports, pat) {
     var type = pat.type;
     if (type === "Identifier")
       { this.checkExport(exports, pat.name, pat.start); }
@@ -1723,7 +1731,7 @@
       { this.checkPatternExport(exports, pat.expression); }
   };
 
-  pp$1.checkVariableExport = function(exports, decls) {
+  pp$8.checkVariableExport = function(exports, decls) {
     if (!exports) { return }
     for (var i = 0, list = decls; i < list.length; i += 1)
       {
@@ -1733,7 +1741,7 @@
     }
   };
 
-  pp$1.shouldParseExportStatement = function() {
+  pp$8.shouldParseExportStatement = function() {
     return this.type.keyword === "var" ||
       this.type.keyword === "const" ||
       this.type.keyword === "class" ||
@@ -1744,14 +1752,14 @@
 
   // Parses a comma-separated list of module exports.
 
-  pp$1.parseExportSpecifiers = function(exports) {
+  pp$8.parseExportSpecifiers = function(exports) {
     var nodes = [], first = true;
     // export { x, y as z } [from '...']
-    this.expect(types.braceL);
-    while (!this.eat(types.braceR)) {
+    this.expect(types$1.braceL);
+    while (!this.eat(types$1.braceR)) {
       if (!first) {
-        this.expect(types.comma);
-        if (this.afterTrailingComma(types.braceR)) { break }
+        this.expect(types$1.comma);
+        if (this.afterTrailingComma(types$1.braceR)) { break }
       } else { first = false; }
 
       var node = this.startNode();
@@ -1765,16 +1773,16 @@
 
   // Parses import declaration.
 
-  pp$1.parseImport = function(node) {
+  pp$8.parseImport = function(node) {
     this.next();
     // import '...'
-    if (this.type === types.string) {
-      node.specifiers = empty;
+    if (this.type === types$1.string) {
+      node.specifiers = empty$1;
       node.source = this.parseExprAtom();
     } else {
       node.specifiers = this.parseImportSpecifiers();
       this.expectContextual("from");
-      node.source = this.type === types.string ? this.parseExprAtom() : this.unexpected();
+      node.source = this.type === types$1.string ? this.parseExprAtom() : this.unexpected();
     }
     this.semicolon();
     return this.finishNode(node, "ImportDeclaration")
@@ -1782,17 +1790,17 @@
 
   // Parses a comma-separated list of module imports.
 
-  pp$1.parseImportSpecifiers = function() {
+  pp$8.parseImportSpecifiers = function() {
     var nodes = [], first = true;
-    if (this.type === types.name) {
+    if (this.type === types$1.name) {
       // import defaultObj, { x, y as z } from '...'
       var node = this.startNode();
       node.local = this.parseIdent();
       this.checkLValSimple(node.local, BIND_LEXICAL);
       nodes.push(this.finishNode(node, "ImportDefaultSpecifier"));
-      if (!this.eat(types.comma)) { return nodes }
+      if (!this.eat(types$1.comma)) { return nodes }
     }
-    if (this.type === types.star) {
+    if (this.type === types$1.star) {
       var node$1 = this.startNode();
       this.next();
       this.expectContextual("as");
@@ -1801,11 +1809,11 @@
       nodes.push(this.finishNode(node$1, "ImportNamespaceSpecifier"));
       return nodes
     }
-    this.expect(types.braceL);
-    while (!this.eat(types.braceR)) {
+    this.expect(types$1.braceL);
+    while (!this.eat(types$1.braceR)) {
       if (!first) {
-        this.expect(types.comma);
-        if (this.afterTrailingComma(types.braceR)) { break }
+        this.expect(types$1.comma);
+        if (this.afterTrailingComma(types$1.braceR)) { break }
       } else { first = false; }
 
       var node$2 = this.startNode();
@@ -1823,12 +1831,12 @@
   };
 
   // Set `ExpressionStatement#directive` property for directive prologues.
-  pp$1.adaptDirectivePrologue = function(statements) {
+  pp$8.adaptDirectivePrologue = function(statements) {
     for (var i = 0; i < statements.length && this.isDirectiveCandidate(statements[i]); ++i) {
       statements[i].directive = statements[i].expression.raw.slice(1, -1);
     }
   };
-  pp$1.isDirectiveCandidate = function(statement) {
+  pp$8.isDirectiveCandidate = function(statement) {
     return (
       statement.type === "ExpressionStatement" &&
       statement.expression.type === "Literal" &&
@@ -1838,12 +1846,12 @@
     )
   };
 
-  var pp$2 = Parser.prototype;
+  var pp$7 = Parser.prototype;
 
   // Convert existing expression atom to assignable pattern
   // if possible.
 
-  pp$2.toAssignable = function(node, isBinding, refDestructuringErrors) {
+  pp$7.toAssignable = function(node, isBinding, refDestructuringErrors) {
     if (this.options.ecmaVersion >= 6 && node) {
       switch (node.type) {
       case "Identifier":
@@ -1924,7 +1932,7 @@
 
   // Convert list of expression atoms to binding list.
 
-  pp$2.toAssignableList = function(exprList, isBinding) {
+  pp$7.toAssignableList = function(exprList, isBinding) {
     var end = exprList.length;
     for (var i = 0; i < end; i++) {
       var elt = exprList[i];
@@ -1940,19 +1948,19 @@
 
   // Parses spread element.
 
-  pp$2.parseSpread = function(refDestructuringErrors) {
+  pp$7.parseSpread = function(refDestructuringErrors) {
     var node = this.startNode();
     this.next();
     node.argument = this.parseMaybeAssign(false, refDestructuringErrors);
     return this.finishNode(node, "SpreadElement")
   };
 
-  pp$2.parseRestBinding = function() {
+  pp$7.parseRestBinding = function() {
     var node = this.startNode();
     this.next();
 
     // RestElement inside of a function parameter must be an identifier
-    if (this.options.ecmaVersion === 6 && this.type !== types.name)
+    if (this.options.ecmaVersion === 6 && this.type !== types$1.name)
       { this.unexpected(); }
 
     node.argument = this.parseBindingAtom();
@@ -1962,36 +1970,36 @@
 
   // Parses lvalue (assignable) atom.
 
-  pp$2.parseBindingAtom = function() {
+  pp$7.parseBindingAtom = function() {
     if (this.options.ecmaVersion >= 6) {
       switch (this.type) {
-      case types.bracketL:
+      case types$1.bracketL:
         var node = this.startNode();
         this.next();
-        node.elements = this.parseBindingList(types.bracketR, true, true);
+        node.elements = this.parseBindingList(types$1.bracketR, true, true);
         return this.finishNode(node, "ArrayPattern")
 
-      case types.braceL:
+      case types$1.braceL:
         return this.parseObj(true)
       }
     }
     return this.parseIdent()
   };
 
-  pp$2.parseBindingList = function(close, allowEmpty, allowTrailingComma) {
+  pp$7.parseBindingList = function(close, allowEmpty, allowTrailingComma) {
     var elts = [], first = true;
     while (!this.eat(close)) {
       if (first) { first = false; }
-      else { this.expect(types.comma); }
-      if (allowEmpty && this.type === types.comma) {
+      else { this.expect(types$1.comma); }
+      if (allowEmpty && this.type === types$1.comma) {
         elts.push(null);
       } else if (allowTrailingComma && this.afterTrailingComma(close)) {
         break
-      } else if (this.type === types.ellipsis) {
+      } else if (this.type === types$1.ellipsis) {
         var rest = this.parseRestBinding();
         this.parseBindingListItem(rest);
         elts.push(rest);
-        if (this.type === types.comma) { this.raise(this.start, "Comma is not permitted after the rest element"); }
+        if (this.type === types$1.comma) { this.raise(this.start, "Comma is not permitted after the rest element"); }
         this.expect(close);
         break
       } else {
@@ -2003,15 +2011,15 @@
     return elts
   };
 
-  pp$2.parseBindingListItem = function(param) {
+  pp$7.parseBindingListItem = function(param) {
     return param
   };
 
   // Parses assignment pattern around given atom if possible.
 
-  pp$2.parseMaybeDefault = function(startPos, startLoc, left) {
+  pp$7.parseMaybeDefault = function(startPos, startLoc, left) {
     left = left || this.parseBindingAtom();
-    if (this.options.ecmaVersion < 6 || !this.eat(types.eq)) { return left }
+    if (this.options.ecmaVersion < 6 || !this.eat(types$1.eq)) { return left }
     var node = this.startNodeAt(startPos, startLoc);
     node.left = left;
     node.right = this.parseMaybeAssign();
@@ -2082,7 +2090,7 @@
   // duplicate argument names. checkClashes is ignored if the provided construct
   // is an assignment (i.e., bindingType is BIND_NONE).
 
-  pp$2.checkLValSimple = function(expr, bindingType, checkClashes) {
+  pp$7.checkLValSimple = function(expr, bindingType, checkClashes) {
     if ( bindingType === void 0 ) bindingType = BIND_NONE;
 
     var isBind = bindingType !== BIND_NONE;
@@ -2120,7 +2128,7 @@
     }
   };
 
-  pp$2.checkLValPattern = function(expr, bindingType, checkClashes) {
+  pp$7.checkLValPattern = function(expr, bindingType, checkClashes) {
     if ( bindingType === void 0 ) bindingType = BIND_NONE;
 
     switch (expr.type) {
@@ -2145,7 +2153,7 @@
     }
   };
 
-  pp$2.checkLValInnerPattern = function(expr, bindingType, checkClashes) {
+  pp$7.checkLValInnerPattern = function(expr, bindingType, checkClashes) {
     if ( bindingType === void 0 ) bindingType = BIND_NONE;
 
     switch (expr.type) {
@@ -2177,7 +2185,7 @@
     this.generator = !!generator;
   };
 
-  var types$1 = {
+  var types = {
     b_stat: new TokContext("{", false),
     b_expr: new TokContext("{", true),
     b_tmpl: new TokContext("${", false),
@@ -2190,38 +2198,38 @@
     f_gen: new TokContext("function", false, false, null, true)
   };
 
-  var pp$3 = Parser.prototype;
+  var pp$6 = Parser.prototype;
 
-  pp$3.initialContext = function() {
-    return [types$1.b_stat]
+  pp$6.initialContext = function() {
+    return [types.b_stat]
   };
 
-  pp$3.curContext = function() {
+  pp$6.curContext = function() {
     return this.context[this.context.length - 1]
   };
 
-  pp$3.braceIsBlock = function(prevType) {
+  pp$6.braceIsBlock = function(prevType) {
     var parent = this.curContext();
-    if (parent === types$1.f_expr || parent === types$1.f_stat)
+    if (parent === types.f_expr || parent === types.f_stat)
       { return true }
-    if (prevType === types.colon && (parent === types$1.b_stat || parent === types$1.b_expr))
+    if (prevType === types$1.colon && (parent === types.b_stat || parent === types.b_expr))
       { return !parent.isExpr }
 
     // The check for `tt.name && exprAllowed` detects whether we are
     // after a `yield` or `of` construct. See the `updateContext` for
     // `tt.name`.
-    if (prevType === types._return || prevType === types.name && this.exprAllowed)
+    if (prevType === types$1._return || prevType === types$1.name && this.exprAllowed)
       { return lineBreak.test(this.input.slice(this.lastTokEnd, this.start)) }
-    if (prevType === types._else || prevType === types.semi || prevType === types.eof || prevType === types.parenR || prevType === types.arrow)
+    if (prevType === types$1._else || prevType === types$1.semi || prevType === types$1.eof || prevType === types$1.parenR || prevType === types$1.arrow)
       { return true }
-    if (prevType === types.braceL)
-      { return parent === types$1.b_stat }
-    if (prevType === types._var || prevType === types._const || prevType === types.name)
+    if (prevType === types$1.braceL)
+      { return parent === types.b_stat }
+    if (prevType === types$1._var || prevType === types$1._const || prevType === types$1.name)
       { return false }
     return !this.exprAllowed
   };
 
-  pp$3.inGeneratorContext = function() {
+  pp$6.inGeneratorContext = function() {
     for (var i = this.context.length - 1; i >= 1; i--) {
       var context = this.context[i];
       if (context.token === "function")
@@ -2230,9 +2238,9 @@
     return false
   };
 
-  pp$3.updateContext = function(prevType) {
+  pp$6.updateContext = function(prevType) {
     var update, type = this.type;
-    if (type.keyword && prevType === types.dot)
+    if (type.keyword && prevType === types$1.dot)
       { this.exprAllowed = false; }
     else if (update = type.updateContext)
       { update.call(this, prevType); }
@@ -2241,7 +2249,7 @@
   };
 
   // Used to handle egde case when token context could not be inferred correctly in tokenize phase
-  pp$3.overrideContext = function(tokenCtx) {
+  pp$6.overrideContext = function(tokenCtx) {
     if (this.curContext() !== tokenCtx) {
       this.context[this.context.length - 1] = tokenCtx;
     }
@@ -2249,71 +2257,71 @@
 
   // Token-specific context update code
 
-  types.parenR.updateContext = types.braceR.updateContext = function() {
+  types$1.parenR.updateContext = types$1.braceR.updateContext = function() {
     if (this.context.length === 1) {
       this.exprAllowed = true;
       return
     }
     var out = this.context.pop();
-    if (out === types$1.b_stat && this.curContext().token === "function") {
+    if (out === types.b_stat && this.curContext().token === "function") {
       out = this.context.pop();
     }
     this.exprAllowed = !out.isExpr;
   };
 
-  types.braceL.updateContext = function(prevType) {
-    this.context.push(this.braceIsBlock(prevType) ? types$1.b_stat : types$1.b_expr);
+  types$1.braceL.updateContext = function(prevType) {
+    this.context.push(this.braceIsBlock(prevType) ? types.b_stat : types.b_expr);
     this.exprAllowed = true;
   };
 
-  types.dollarBraceL.updateContext = function() {
-    this.context.push(types$1.b_tmpl);
+  types$1.dollarBraceL.updateContext = function() {
+    this.context.push(types.b_tmpl);
     this.exprAllowed = true;
   };
 
-  types.parenL.updateContext = function(prevType) {
-    var statementParens = prevType === types._if || prevType === types._for || prevType === types._with || prevType === types._while;
-    this.context.push(statementParens ? types$1.p_stat : types$1.p_expr);
+  types$1.parenL.updateContext = function(prevType) {
+    var statementParens = prevType === types$1._if || prevType === types$1._for || prevType === types$1._with || prevType === types$1._while;
+    this.context.push(statementParens ? types.p_stat : types.p_expr);
     this.exprAllowed = true;
   };
 
-  types.incDec.updateContext = function() {
+  types$1.incDec.updateContext = function() {
     // tokExprAllowed stays unchanged
   };
 
-  types._function.updateContext = types._class.updateContext = function(prevType) {
-    if (prevType.beforeExpr && prevType !== types._else &&
-        !(prevType === types.semi && this.curContext() !== types$1.p_stat) &&
-        !(prevType === types._return && lineBreak.test(this.input.slice(this.lastTokEnd, this.start))) &&
-        !((prevType === types.colon || prevType === types.braceL) && this.curContext() === types$1.b_stat))
-      { this.context.push(types$1.f_expr); }
+  types$1._function.updateContext = types$1._class.updateContext = function(prevType) {
+    if (prevType.beforeExpr && prevType !== types$1._else &&
+        !(prevType === types$1.semi && this.curContext() !== types.p_stat) &&
+        !(prevType === types$1._return && lineBreak.test(this.input.slice(this.lastTokEnd, this.start))) &&
+        !((prevType === types$1.colon || prevType === types$1.braceL) && this.curContext() === types.b_stat))
+      { this.context.push(types.f_expr); }
     else
-      { this.context.push(types$1.f_stat); }
+      { this.context.push(types.f_stat); }
     this.exprAllowed = false;
   };
 
-  types.backQuote.updateContext = function() {
-    if (this.curContext() === types$1.q_tmpl)
+  types$1.backQuote.updateContext = function() {
+    if (this.curContext() === types.q_tmpl)
       { this.context.pop(); }
     else
-      { this.context.push(types$1.q_tmpl); }
+      { this.context.push(types.q_tmpl); }
     this.exprAllowed = false;
   };
 
-  types.star.updateContext = function(prevType) {
-    if (prevType === types._function) {
+  types$1.star.updateContext = function(prevType) {
+    if (prevType === types$1._function) {
       var index = this.context.length - 1;
-      if (this.context[index] === types$1.f_expr)
-        { this.context[index] = types$1.f_expr_gen; }
+      if (this.context[index] === types.f_expr)
+        { this.context[index] = types.f_expr_gen; }
       else
-        { this.context[index] = types$1.f_gen; }
+        { this.context[index] = types.f_gen; }
     }
     this.exprAllowed = true;
   };
 
-  types.name.updateContext = function(prevType) {
+  types$1.name.updateContext = function(prevType) {
     var allowed = false;
-    if (this.options.ecmaVersion >= 6 && prevType !== types.dot) {
+    if (this.options.ecmaVersion >= 6 && prevType !== types$1.dot) {
       if (this.value === "of" && !this.exprAllowed ||
           this.value === "yield" && this.inGeneratorContext())
         { allowed = true; }
@@ -2323,14 +2331,14 @@
 
   // A recursive descent parser operates by defining functions for all
 
-  var pp$4 = Parser.prototype;
+  var pp$5 = Parser.prototype;
 
   // Check if property name clashes with already added.
   // Object/class getters and setters are not allowed to clash —
   // either with each other or with an init property — and in
   // strict mode, init properties are also not allowed to be repeated.
 
-  pp$4.checkPropClash = function(prop, propHash, refDestructuringErrors) {
+  pp$5.checkPropClash = function(prop, propHash, refDestructuringErrors) {
     if (this.options.ecmaVersion >= 9 && prop.type === "SpreadElement")
       { return }
     if (this.options.ecmaVersion >= 6 && (prop.computed || prop.method || prop.shorthand))
@@ -2347,10 +2355,12 @@
       if (name === "__proto__" && kind === "init") {
         if (propHash.proto) {
           if (refDestructuringErrors) {
-            if (refDestructuringErrors.doubleProto < 0)
-              { refDestructuringErrors.doubleProto = key.start; }
-            // Backwards-compat kludge. Can be removed in version 6.0
-          } else { this.raiseRecoverable(key.start, "Redefinition of __proto__ property"); }
+            if (refDestructuringErrors.doubleProto < 0) {
+              refDestructuringErrors.doubleProto = key.start;
+            }
+          } else {
+            this.raiseRecoverable(key.start, "Redefinition of __proto__ property");
+          }
         }
         propHash.proto = true;
       }
@@ -2392,13 +2402,13 @@
   // and object pattern might appear (so it's possible to raise
   // delayed syntax error at correct position).
 
-  pp$4.parseExpression = function(forInit, refDestructuringErrors) {
+  pp$5.parseExpression = function(forInit, refDestructuringErrors) {
     var startPos = this.start, startLoc = this.startLoc;
     var expr = this.parseMaybeAssign(forInit, refDestructuringErrors);
-    if (this.type === types.comma) {
+    if (this.type === types$1.comma) {
       var node = this.startNodeAt(startPos, startLoc);
       node.expressions = [expr];
-      while (this.eat(types.comma)) { node.expressions.push(this.parseMaybeAssign(forInit, refDestructuringErrors)); }
+      while (this.eat(types$1.comma)) { node.expressions.push(this.parseMaybeAssign(forInit, refDestructuringErrors)); }
       return this.finishNode(node, "SequenceExpression")
     }
     return expr
@@ -2407,7 +2417,7 @@
   // Parse an assignment expression. This includes applications of
   // operators like `+=`.
 
-  pp$4.parseMaybeAssign = function(forInit, refDestructuringErrors, afterLeftParse) {
+  pp$5.parseMaybeAssign = function(forInit, refDestructuringErrors, afterLeftParse) {
     if (this.isContextual("yield")) {
       if (this.inGenerator) { return this.parseYield(forInit) }
       // The tokenizer will assume an expression is allowed after
@@ -2415,10 +2425,11 @@
       else { this.exprAllowed = false; }
     }
 
-    var ownDestructuringErrors = false, oldParenAssign = -1, oldTrailingComma = -1;
+    var ownDestructuringErrors = false, oldParenAssign = -1, oldTrailingComma = -1, oldDoubleProto = -1;
     if (refDestructuringErrors) {
       oldParenAssign = refDestructuringErrors.parenthesizedAssign;
       oldTrailingComma = refDestructuringErrors.trailingComma;
+      oldDoubleProto = refDestructuringErrors.doubleProto;
       refDestructuringErrors.parenthesizedAssign = refDestructuringErrors.trailingComma = -1;
     } else {
       refDestructuringErrors = new DestructuringErrors;
@@ -2426,7 +2437,7 @@
     }
 
     var startPos = this.start, startLoc = this.startLoc;
-    if (this.type === types.parenL || this.type === types.name) {
+    if (this.type === types$1.parenL || this.type === types$1.name) {
       this.potentialArrowAt = this.start;
       this.potentialArrowInForAwait = forInit === "await";
     }
@@ -2435,20 +2446,21 @@
     if (this.type.isAssign) {
       var node = this.startNodeAt(startPos, startLoc);
       node.operator = this.value;
-      if (this.type === types.eq)
+      if (this.type === types$1.eq)
         { left = this.toAssignable(left, false, refDestructuringErrors); }
       if (!ownDestructuringErrors) {
         refDestructuringErrors.parenthesizedAssign = refDestructuringErrors.trailingComma = refDestructuringErrors.doubleProto = -1;
       }
       if (refDestructuringErrors.shorthandAssign >= left.start)
         { refDestructuringErrors.shorthandAssign = -1; } // reset because shorthand default was used correctly
-      if (this.type === types.eq)
+      if (this.type === types$1.eq)
         { this.checkLValPattern(left); }
       else
         { this.checkLValSimple(left); }
       node.left = left;
       this.next();
       node.right = this.parseMaybeAssign(forInit);
+      if (oldDoubleProto > -1) { refDestructuringErrors.doubleProto = oldDoubleProto; }
       return this.finishNode(node, "AssignmentExpression")
     } else {
       if (ownDestructuringErrors) { this.checkExpressionErrors(refDestructuringErrors, true); }
@@ -2460,15 +2472,15 @@
 
   // Parse a ternary conditional (`?:`) operator.
 
-  pp$4.parseMaybeConditional = function(forInit, refDestructuringErrors) {
+  pp$5.parseMaybeConditional = function(forInit, refDestructuringErrors) {
     var startPos = this.start, startLoc = this.startLoc;
     var expr = this.parseExprOps(forInit, refDestructuringErrors);
     if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
-    if (this.eat(types.question)) {
+    if (this.eat(types$1.question)) {
       var node = this.startNodeAt(startPos, startLoc);
       node.test = expr;
       node.consequent = this.parseMaybeAssign();
-      this.expect(types.colon);
+      this.expect(types$1.colon);
       node.alternate = this.parseMaybeAssign(forInit);
       return this.finishNode(node, "ConditionalExpression")
     }
@@ -2477,7 +2489,7 @@
 
   // Start the precedence parser.
 
-  pp$4.parseExprOps = function(forInit, refDestructuringErrors) {
+  pp$5.parseExprOps = function(forInit, refDestructuringErrors) {
     var startPos = this.start, startLoc = this.startLoc;
     var expr = this.parseMaybeUnary(refDestructuringErrors, false, false, forInit);
     if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
@@ -2490,23 +2502,23 @@
   // defer further parser to one of its callers when it encounters an
   // operator that has a lower precedence than the set it is parsing.
 
-  pp$4.parseExprOp = function(left, leftStartPos, leftStartLoc, minPrec, forInit) {
+  pp$5.parseExprOp = function(left, leftStartPos, leftStartLoc, minPrec, forInit) {
     var prec = this.type.binop;
-    if (prec != null && (!forInit || this.type !== types._in)) {
+    if (prec != null && (!forInit || this.type !== types$1._in)) {
       if (prec > minPrec) {
-        var logical = this.type === types.logicalOR || this.type === types.logicalAND;
-        var coalesce = this.type === types.coalesce;
+        var logical = this.type === types$1.logicalOR || this.type === types$1.logicalAND;
+        var coalesce = this.type === types$1.coalesce;
         if (coalesce) {
           // Handle the precedence of `tt.coalesce` as equal to the range of logical expressions.
           // In other words, `node.right` shouldn't contain logical expressions in order to check the mixed error.
-          prec = types.logicalAND.binop;
+          prec = types$1.logicalAND.binop;
         }
         var op = this.value;
         this.next();
         var startPos = this.start, startLoc = this.startLoc;
         var right = this.parseExprOp(this.parseMaybeUnary(null, false, false, forInit), startPos, startLoc, prec, forInit);
         var node = this.buildBinary(leftStartPos, leftStartLoc, left, right, op, logical || coalesce);
-        if ((logical && this.type === types.coalesce) || (coalesce && (this.type === types.logicalOR || this.type === types.logicalAND))) {
+        if ((logical && this.type === types$1.coalesce) || (coalesce && (this.type === types$1.logicalOR || this.type === types$1.logicalAND))) {
           this.raiseRecoverable(this.start, "Logical expressions and coalesce expressions cannot be mixed. Wrap either by parentheses");
         }
         return this.parseExprOp(node, leftStartPos, leftStartLoc, minPrec, forInit)
@@ -2515,7 +2527,8 @@
     return left
   };
 
-  pp$4.buildBinary = function(startPos, startLoc, left, right, op, logical) {
+  pp$5.buildBinary = function(startPos, startLoc, left, right, op, logical) {
+    if (right.type === "PrivateIdentifier") { this.raise(right.start, "Private identifier can only be left side of binary expression"); }
     var node = this.startNodeAt(startPos, startLoc);
     node.left = left;
     node.operator = op;
@@ -2525,13 +2538,13 @@
 
   // Parse unary operators, both prefix and postfix.
 
-  pp$4.parseMaybeUnary = function(refDestructuringErrors, sawUnary, incDec, forInit) {
+  pp$5.parseMaybeUnary = function(refDestructuringErrors, sawUnary, incDec, forInit) {
     var startPos = this.start, startLoc = this.startLoc, expr;
     if (this.isContextual("await") && this.canAwait) {
       expr = this.parseAwait(forInit);
       sawUnary = true;
     } else if (this.type.prefix) {
-      var node = this.startNode(), update = this.type === types.incDec;
+      var node = this.startNode(), update = this.type === types$1.incDec;
       node.operator = this.value;
       node.prefix = true;
       this.next();
@@ -2545,6 +2558,11 @@
         { this.raiseRecoverable(node.start, "Private fields can not be deleted"); }
       else { sawUnary = true; }
       expr = this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression");
+    } else if (!sawUnary && this.type === types$1.privateId) {
+      if (forInit || this.privateNameStack.length === 0) { this.unexpected(); }
+      expr = this.parsePrivateIdent();
+      // only could be private fields in 'in', such as #x in obj
+      if (this.type !== types$1._in) { this.unexpected(); }
     } else {
       expr = this.parseExprSubscripts(refDestructuringErrors, forInit);
       if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
@@ -2559,7 +2577,7 @@
       }
     }
 
-    if (!incDec && this.eat(types.starstar)) {
+    if (!incDec && this.eat(types$1.starstar)) {
       if (sawUnary)
         { this.unexpected(this.lastTokStart); }
       else
@@ -2578,7 +2596,7 @@
 
   // Parse call, dot, and `[]`-subscript expressions.
 
-  pp$4.parseExprSubscripts = function(refDestructuringErrors, forInit) {
+  pp$5.parseExprSubscripts = function(refDestructuringErrors, forInit) {
     var startPos = this.start, startLoc = this.startLoc;
     var expr = this.parseExprAtom(refDestructuringErrors, forInit);
     if (expr.type === "ArrowFunctionExpression" && this.input.slice(this.lastTokStart, this.lastTokEnd) !== ")")
@@ -2592,7 +2610,7 @@
     return result
   };
 
-  pp$4.parseSubscripts = function(base, startPos, startLoc, noCalls, forInit) {
+  pp$5.parseSubscripts = function(base, startPos, startLoc, noCalls, forInit) {
     var maybeAsyncArrow = this.options.ecmaVersion >= 8 && base.type === "Identifier" && base.name === "async" &&
         this.lastTokEnd === base.end && !this.canInsertSemicolon() && base.end - base.start === 5 &&
         this.potentialArrowAt === base.start;
@@ -2615,19 +2633,19 @@
     }
   };
 
-  pp$4.parseSubscript = function(base, startPos, startLoc, noCalls, maybeAsyncArrow, optionalChained, forInit) {
+  pp$5.parseSubscript = function(base, startPos, startLoc, noCalls, maybeAsyncArrow, optionalChained, forInit) {
     var optionalSupported = this.options.ecmaVersion >= 11;
-    var optional = optionalSupported && this.eat(types.questionDot);
+    var optional = optionalSupported && this.eat(types$1.questionDot);
     if (noCalls && optional) { this.raise(this.lastTokStart, "Optional chaining cannot appear in the callee of new expressions"); }
 
-    var computed = this.eat(types.bracketL);
-    if (computed || (optional && this.type !== types.parenL && this.type !== types.backQuote) || this.eat(types.dot)) {
+    var computed = this.eat(types$1.bracketL);
+    if (computed || (optional && this.type !== types$1.parenL && this.type !== types$1.backQuote) || this.eat(types$1.dot)) {
       var node = this.startNodeAt(startPos, startLoc);
       node.object = base;
       if (computed) {
         node.property = this.parseExpression();
-        this.expect(types.bracketR);
-      } else if (this.type === types.privateId && base.type !== "Super") {
+        this.expect(types$1.bracketR);
+      } else if (this.type === types$1.privateId && base.type !== "Super") {
         node.property = this.parsePrivateIdent();
       } else {
         node.property = this.parseIdent(this.options.allowReserved !== "never");
@@ -2637,13 +2655,13 @@
         node.optional = optional;
       }
       base = this.finishNode(node, "MemberExpression");
-    } else if (!noCalls && this.eat(types.parenL)) {
+    } else if (!noCalls && this.eat(types$1.parenL)) {
       var refDestructuringErrors = new DestructuringErrors, oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos;
       this.yieldPos = 0;
       this.awaitPos = 0;
       this.awaitIdentPos = 0;
-      var exprList = this.parseExprList(types.parenR, this.options.ecmaVersion >= 8, false, refDestructuringErrors);
-      if (maybeAsyncArrow && !optional && !this.canInsertSemicolon() && this.eat(types.arrow)) {
+      var exprList = this.parseExprList(types$1.parenR, this.options.ecmaVersion >= 8, false, refDestructuringErrors);
+      if (maybeAsyncArrow && !optional && !this.canInsertSemicolon() && this.eat(types$1.arrow)) {
         this.checkPatternErrors(refDestructuringErrors, false);
         this.checkYieldAwaitInDefaultParams();
         if (this.awaitIdentPos > 0)
@@ -2664,7 +2682,7 @@
         node$1.optional = optional;
       }
       base = this.finishNode(node$1, "CallExpression");
-    } else if (this.type === types.backQuote) {
+    } else if (this.type === types$1.backQuote) {
       if (optional || optionalChained) {
         this.raise(this.start, "Optional chaining cannot appear in the tag of tagged template expressions");
       }
@@ -2681,19 +2699,19 @@
   // `new`, or an expression wrapped in punctuation like `()`, `[]`,
   // or `{}`.
 
-  pp$4.parseExprAtom = function(refDestructuringErrors, forInit) {
+  pp$5.parseExprAtom = function(refDestructuringErrors, forInit) {
     // If a division operator appears in an expression position, the
     // tokenizer got confused, and we force it to read a regexp instead.
-    if (this.type === types.slash) { this.readRegexp(); }
+    if (this.type === types$1.slash) { this.readRegexp(); }
 
     var node, canBeArrow = this.potentialArrowAt === this.start;
     switch (this.type) {
-    case types._super:
+    case types$1._super:
       if (!this.allowSuper)
         { this.raise(this.start, "'super' keyword outside a method"); }
       node = this.startNode();
       this.next();
-      if (this.type === types.parenL && !this.allowDirectSuper)
+      if (this.type === types$1.parenL && !this.allowDirectSuper)
         { this.raise(node.start, "super() call outside constructor of a subclass"); }
       // The `super` keyword can appear at below:
       // SuperProperty:
@@ -2701,52 +2719,52 @@
       //     super . IdentifierName
       // SuperCall:
       //     super ( Arguments )
-      if (this.type !== types.dot && this.type !== types.bracketL && this.type !== types.parenL)
+      if (this.type !== types$1.dot && this.type !== types$1.bracketL && this.type !== types$1.parenL)
         { this.unexpected(); }
       return this.finishNode(node, "Super")
 
-    case types._this:
+    case types$1._this:
       node = this.startNode();
       this.next();
       return this.finishNode(node, "ThisExpression")
 
-    case types.name:
+    case types$1.name:
       var startPos = this.start, startLoc = this.startLoc, containsEsc = this.containsEsc;
       var id = this.parseIdent(false);
-      if (this.options.ecmaVersion >= 8 && !containsEsc && id.name === "async" && !this.canInsertSemicolon() && this.eat(types._function)) {
-        this.overrideContext(types$1.f_expr);
+      if (this.options.ecmaVersion >= 8 && !containsEsc && id.name === "async" && !this.canInsertSemicolon() && this.eat(types$1._function)) {
+        this.overrideContext(types.f_expr);
         return this.parseFunction(this.startNodeAt(startPos, startLoc), 0, false, true, forInit)
       }
       if (canBeArrow && !this.canInsertSemicolon()) {
-        if (this.eat(types.arrow))
+        if (this.eat(types$1.arrow))
           { return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], false, forInit) }
-        if (this.options.ecmaVersion >= 8 && id.name === "async" && this.type === types.name && !containsEsc &&
+        if (this.options.ecmaVersion >= 8 && id.name === "async" && this.type === types$1.name && !containsEsc &&
             (!this.potentialArrowInForAwait || this.value !== "of" || this.containsEsc)) {
           id = this.parseIdent(false);
-          if (this.canInsertSemicolon() || !this.eat(types.arrow))
+          if (this.canInsertSemicolon() || !this.eat(types$1.arrow))
             { this.unexpected(); }
           return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], true, forInit)
         }
       }
       return id
 
-    case types.regexp:
+    case types$1.regexp:
       var value = this.value;
       node = this.parseLiteral(value.value);
       node.regex = {pattern: value.pattern, flags: value.flags};
       return node
 
-    case types.num: case types.string:
+    case types$1.num: case types$1.string:
       return this.parseLiteral(this.value)
 
-    case types._null: case types._true: case types._false:
+    case types$1._null: case types$1._true: case types$1._false:
       node = this.startNode();
-      node.value = this.type === types._null ? null : this.type === types._true;
+      node.value = this.type === types$1._null ? null : this.type === types$1._true;
       node.raw = this.type.keyword;
       this.next();
       return this.finishNode(node, "Literal")
 
-    case types.parenL:
+    case types$1.parenL:
       var start = this.start, expr = this.parseParenAndDistinguishExpression(canBeArrow, forInit);
       if (refDestructuringErrors) {
         if (refDestructuringErrors.parenthesizedAssign < 0 && !this.isSimpleAssignTarget(expr))
@@ -2756,31 +2774,31 @@
       }
       return expr
 
-    case types.bracketL:
+    case types$1.bracketL:
       node = this.startNode();
       this.next();
-      node.elements = this.parseExprList(types.bracketR, true, true, refDestructuringErrors);
+      node.elements = this.parseExprList(types$1.bracketR, true, true, refDestructuringErrors);
       return this.finishNode(node, "ArrayExpression")
 
-    case types.braceL:
-      this.overrideContext(types$1.b_expr);
+    case types$1.braceL:
+      this.overrideContext(types.b_expr);
       return this.parseObj(false, refDestructuringErrors)
 
-    case types._function:
+    case types$1._function:
       node = this.startNode();
       this.next();
       return this.parseFunction(node, 0)
 
-    case types._class:
+    case types$1._class:
       return this.parseClass(this.startNode(), false)
 
-    case types._new:
+    case types$1._new:
       return this.parseNew()
 
-    case types.backQuote:
+    case types$1.backQuote:
       return this.parseTemplate()
 
-    case types._import:
+    case types$1._import:
       if (this.options.ecmaVersion >= 11) {
         return this.parseExprImport()
       } else {
@@ -2792,7 +2810,7 @@
     }
   };
 
-  pp$4.parseExprImport = function() {
+  pp$5.parseExprImport = function() {
     var node = this.startNode();
 
     // Consume `import` as an identifier for `import.meta`.
@@ -2801,9 +2819,9 @@
     var meta = this.parseIdent(true);
 
     switch (this.type) {
-    case types.parenL:
+    case types$1.parenL:
       return this.parseDynamicImport(node)
-    case types.dot:
+    case types$1.dot:
       node.meta = meta;
       return this.parseImportMeta(node)
     default:
@@ -2811,16 +2829,16 @@
     }
   };
 
-  pp$4.parseDynamicImport = function(node) {
+  pp$5.parseDynamicImport = function(node) {
     this.next(); // skip `(`
 
     // Parse node.source.
     node.source = this.parseMaybeAssign();
 
     // Verify ending.
-    if (!this.eat(types.parenR)) {
+    if (!this.eat(types$1.parenR)) {
       var errorPos = this.start;
-      if (this.eat(types.comma) && this.eat(types.parenR)) {
+      if (this.eat(types$1.comma) && this.eat(types$1.parenR)) {
         this.raiseRecoverable(errorPos, "Trailing comma is not allowed in import()");
       } else {
         this.unexpected(errorPos);
@@ -2830,7 +2848,7 @@
     return this.finishNode(node, "ImportExpression")
   };
 
-  pp$4.parseImportMeta = function(node) {
+  pp$5.parseImportMeta = function(node) {
     this.next(); // skip `.`
 
     var containsEsc = this.containsEsc;
@@ -2846,7 +2864,7 @@
     return this.finishNode(node, "MetaProperty")
   };
 
-  pp$4.parseLiteral = function(value) {
+  pp$5.parseLiteral = function(value) {
     var node = this.startNode();
     node.value = value;
     node.raw = this.input.slice(this.start, this.end);
@@ -2855,14 +2873,14 @@
     return this.finishNode(node, "Literal")
   };
 
-  pp$4.parseParenExpression = function() {
-    this.expect(types.parenL);
+  pp$5.parseParenExpression = function() {
+    this.expect(types$1.parenL);
     var val = this.parseExpression();
-    this.expect(types.parenR);
+    this.expect(types$1.parenR);
     return val
   };
 
-  pp$4.parseParenAndDistinguishExpression = function(canBeArrow, forInit) {
+  pp$5.parseParenAndDistinguishExpression = function(canBeArrow, forInit) {
     var startPos = this.start, startLoc = this.startLoc, val, allowTrailingComma = this.options.ecmaVersion >= 8;
     if (this.options.ecmaVersion >= 6) {
       this.next();
@@ -2873,24 +2891,24 @@
       this.yieldPos = 0;
       this.awaitPos = 0;
       // Do not save awaitIdentPos to allow checking awaits nested in parameters
-      while (this.type !== types.parenR) {
-        first ? first = false : this.expect(types.comma);
-        if (allowTrailingComma && this.afterTrailingComma(types.parenR, true)) {
+      while (this.type !== types$1.parenR) {
+        first ? first = false : this.expect(types$1.comma);
+        if (allowTrailingComma && this.afterTrailingComma(types$1.parenR, true)) {
           lastIsComma = true;
           break
-        } else if (this.type === types.ellipsis) {
+        } else if (this.type === types$1.ellipsis) {
           spreadStart = this.start;
           exprList.push(this.parseParenItem(this.parseRestBinding()));
-          if (this.type === types.comma) { this.raise(this.start, "Comma is not permitted after the rest element"); }
+          if (this.type === types$1.comma) { this.raise(this.start, "Comma is not permitted after the rest element"); }
           break
         } else {
           exprList.push(this.parseMaybeAssign(false, refDestructuringErrors, this.parseParenItem));
         }
       }
       var innerEndPos = this.lastTokEnd, innerEndLoc = this.lastTokEndLoc;
-      this.expect(types.parenR);
+      this.expect(types$1.parenR);
 
-      if (canBeArrow && !this.canInsertSemicolon() && this.eat(types.arrow)) {
+      if (canBeArrow && !this.canInsertSemicolon() && this.eat(types$1.arrow)) {
         this.checkPatternErrors(refDestructuringErrors, false);
         this.checkYieldAwaitInDefaultParams();
         this.yieldPos = oldYieldPos;
@@ -2924,12 +2942,12 @@
     }
   };
 
-  pp$4.parseParenItem = function(item) {
+  pp$5.parseParenItem = function(item) {
     return item
   };
 
-  pp$4.parseParenArrowList = function(startPos, startLoc, exprList, forInit) {
-    return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList, forInit)
+  pp$5.parseParenArrowList = function(startPos, startLoc, exprList, forInit) {
+    return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList, false, forInit)
   };
 
   // New's precedence is slightly tricky. It must allow its argument to
@@ -2938,13 +2956,13 @@
   // argument to parseSubscripts to prevent it from consuming the
   // argument list.
 
-  var empty$1 = [];
+  var empty = [];
 
-  pp$4.parseNew = function() {
+  pp$5.parseNew = function() {
     if (this.containsEsc) { this.raiseRecoverable(this.start, "Escape sequence in keyword new"); }
     var node = this.startNode();
     var meta = this.parseIdent(true);
-    if (this.options.ecmaVersion >= 6 && this.eat(types.dot)) {
+    if (this.options.ecmaVersion >= 6 && this.eat(types$1.dot)) {
       node.meta = meta;
       var containsEsc = this.containsEsc;
       node.property = this.parseIdent(true);
@@ -2956,23 +2974,23 @@
         { this.raiseRecoverable(node.start, "'new.target' can only be used in functions and class static block"); }
       return this.finishNode(node, "MetaProperty")
     }
-    var startPos = this.start, startLoc = this.startLoc, isImport = this.type === types._import;
+    var startPos = this.start, startLoc = this.startLoc, isImport = this.type === types$1._import;
     node.callee = this.parseSubscripts(this.parseExprAtom(), startPos, startLoc, true, false);
     if (isImport && node.callee.type === "ImportExpression") {
       this.raise(startPos, "Cannot use new with import()");
     }
-    if (this.eat(types.parenL)) { node.arguments = this.parseExprList(types.parenR, this.options.ecmaVersion >= 8, false); }
-    else { node.arguments = empty$1; }
+    if (this.eat(types$1.parenL)) { node.arguments = this.parseExprList(types$1.parenR, this.options.ecmaVersion >= 8, false); }
+    else { node.arguments = empty; }
     return this.finishNode(node, "NewExpression")
   };
 
   // Parse template expression.
 
-  pp$4.parseTemplateElement = function(ref) {
+  pp$5.parseTemplateElement = function(ref) {
     var isTagged = ref.isTagged;
 
     var elem = this.startNode();
-    if (this.type === types.invalidTemplate) {
+    if (this.type === types$1.invalidTemplate) {
       if (!isTagged) {
         this.raiseRecoverable(this.start, "Bad escape sequence in untagged template literal");
       }
@@ -2987,11 +3005,11 @@
       };
     }
     this.next();
-    elem.tail = this.type === types.backQuote;
+    elem.tail = this.type === types$1.backQuote;
     return this.finishNode(elem, "TemplateElement")
   };
 
-  pp$4.parseTemplate = function(ref) {
+  pp$5.parseTemplate = function(ref) {
     if ( ref === void 0 ) ref = {};
     var isTagged = ref.isTagged; if ( isTagged === void 0 ) isTagged = false;
 
@@ -3001,32 +3019,32 @@
     var curElt = this.parseTemplateElement({isTagged: isTagged});
     node.quasis = [curElt];
     while (!curElt.tail) {
-      if (this.type === types.eof) { this.raise(this.pos, "Unterminated template literal"); }
-      this.expect(types.dollarBraceL);
+      if (this.type === types$1.eof) { this.raise(this.pos, "Unterminated template literal"); }
+      this.expect(types$1.dollarBraceL);
       node.expressions.push(this.parseExpression());
-      this.expect(types.braceR);
+      this.expect(types$1.braceR);
       node.quasis.push(curElt = this.parseTemplateElement({isTagged: isTagged}));
     }
     this.next();
     return this.finishNode(node, "TemplateLiteral")
   };
 
-  pp$4.isAsyncProp = function(prop) {
+  pp$5.isAsyncProp = function(prop) {
     return !prop.computed && prop.key.type === "Identifier" && prop.key.name === "async" &&
-      (this.type === types.name || this.type === types.num || this.type === types.string || this.type === types.bracketL || this.type.keyword || (this.options.ecmaVersion >= 9 && this.type === types.star)) &&
+      (this.type === types$1.name || this.type === types$1.num || this.type === types$1.string || this.type === types$1.bracketL || this.type.keyword || (this.options.ecmaVersion >= 9 && this.type === types$1.star)) &&
       !lineBreak.test(this.input.slice(this.lastTokEnd, this.start))
   };
 
   // Parse an object literal or binding pattern.
 
-  pp$4.parseObj = function(isPattern, refDestructuringErrors) {
+  pp$5.parseObj = function(isPattern, refDestructuringErrors) {
     var node = this.startNode(), first = true, propHash = {};
     node.properties = [];
     this.next();
-    while (!this.eat(types.braceR)) {
+    while (!this.eat(types$1.braceR)) {
       if (!first) {
-        this.expect(types.comma);
-        if (this.options.ecmaVersion >= 5 && this.afterTrailingComma(types.braceR)) { break }
+        this.expect(types$1.comma);
+        if (this.options.ecmaVersion >= 5 && this.afterTrailingComma(types$1.braceR)) { break }
       } else { first = false; }
 
       var prop = this.parseProperty(isPattern, refDestructuringErrors);
@@ -3036,18 +3054,18 @@
     return this.finishNode(node, isPattern ? "ObjectPattern" : "ObjectExpression")
   };
 
-  pp$4.parseProperty = function(isPattern, refDestructuringErrors) {
+  pp$5.parseProperty = function(isPattern, refDestructuringErrors) {
     var prop = this.startNode(), isGenerator, isAsync, startPos, startLoc;
-    if (this.options.ecmaVersion >= 9 && this.eat(types.ellipsis)) {
+    if (this.options.ecmaVersion >= 9 && this.eat(types$1.ellipsis)) {
       if (isPattern) {
         prop.argument = this.parseIdent(false);
-        if (this.type === types.comma) {
+        if (this.type === types$1.comma) {
           this.raise(this.start, "Comma is not permitted after the rest element");
         }
         return this.finishNode(prop, "RestElement")
       }
       // To disallow parenthesized identifier via `this.toAssignable()`.
-      if (this.type === types.parenL && refDestructuringErrors) {
+      if (this.type === types$1.parenL && refDestructuringErrors) {
         if (refDestructuringErrors.parenthesizedAssign < 0) {
           refDestructuringErrors.parenthesizedAssign = this.start;
         }
@@ -3058,7 +3076,7 @@
       // Parse argument.
       prop.argument = this.parseMaybeAssign(false, refDestructuringErrors);
       // To disallow trailing comma via `this.toAssignable()`.
-      if (this.type === types.comma && refDestructuringErrors && refDestructuringErrors.trailingComma < 0) {
+      if (this.type === types$1.comma && refDestructuringErrors && refDestructuringErrors.trailingComma < 0) {
         refDestructuringErrors.trailingComma = this.start;
       }
       // Finish
@@ -3072,13 +3090,13 @@
         startLoc = this.startLoc;
       }
       if (!isPattern)
-        { isGenerator = this.eat(types.star); }
+        { isGenerator = this.eat(types$1.star); }
     }
     var containsEsc = this.containsEsc;
     this.parsePropertyName(prop);
     if (!isPattern && !containsEsc && this.options.ecmaVersion >= 8 && !isGenerator && this.isAsyncProp(prop)) {
       isAsync = true;
-      isGenerator = this.options.ecmaVersion >= 9 && this.eat(types.star);
+      isGenerator = this.options.ecmaVersion >= 9 && this.eat(types$1.star);
       this.parsePropertyName(prop, refDestructuringErrors);
     } else {
       isAsync = false;
@@ -3087,14 +3105,14 @@
     return this.finishNode(prop, "Property")
   };
 
-  pp$4.parsePropertyValue = function(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors, containsEsc) {
-    if ((isGenerator || isAsync) && this.type === types.colon)
+  pp$5.parsePropertyValue = function(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors, containsEsc) {
+    if ((isGenerator || isAsync) && this.type === types$1.colon)
       { this.unexpected(); }
 
-    if (this.eat(types.colon)) {
+    if (this.eat(types$1.colon)) {
       prop.value = isPattern ? this.parseMaybeDefault(this.start, this.startLoc) : this.parseMaybeAssign(false, refDestructuringErrors);
       prop.kind = "init";
-    } else if (this.options.ecmaVersion >= 6 && this.type === types.parenL) {
+    } else if (this.options.ecmaVersion >= 6 && this.type === types$1.parenL) {
       if (isPattern) { this.unexpected(); }
       prop.kind = "init";
       prop.method = true;
@@ -3102,7 +3120,7 @@
     } else if (!isPattern && !containsEsc &&
                this.options.ecmaVersion >= 5 && !prop.computed && prop.key.type === "Identifier" &&
                (prop.key.name === "get" || prop.key.name === "set") &&
-               (this.type !== types.comma && this.type !== types.braceR && this.type !== types.eq)) {
+               (this.type !== types$1.comma && this.type !== types$1.braceR && this.type !== types$1.eq)) {
       if (isGenerator || isAsync) { this.unexpected(); }
       prop.kind = prop.key.name;
       this.parsePropertyName(prop);
@@ -3126,7 +3144,7 @@
       prop.kind = "init";
       if (isPattern) {
         prop.value = this.parseMaybeDefault(startPos, startLoc, this.copyNode(prop.key));
-      } else if (this.type === types.eq && refDestructuringErrors) {
+      } else if (this.type === types$1.eq && refDestructuringErrors) {
         if (refDestructuringErrors.shorthandAssign < 0)
           { refDestructuringErrors.shorthandAssign = this.start; }
         prop.value = this.parseMaybeDefault(startPos, startLoc, this.copyNode(prop.key));
@@ -3137,23 +3155,23 @@
     } else { this.unexpected(); }
   };
 
-  pp$4.parsePropertyName = function(prop) {
+  pp$5.parsePropertyName = function(prop) {
     if (this.options.ecmaVersion >= 6) {
-      if (this.eat(types.bracketL)) {
+      if (this.eat(types$1.bracketL)) {
         prop.computed = true;
         prop.key = this.parseMaybeAssign();
-        this.expect(types.bracketR);
+        this.expect(types$1.bracketR);
         return prop.key
       } else {
         prop.computed = false;
       }
     }
-    return prop.key = this.type === types.num || this.type === types.string ? this.parseExprAtom() : this.parseIdent(this.options.allowReserved !== "never")
+    return prop.key = this.type === types$1.num || this.type === types$1.string ? this.parseExprAtom() : this.parseIdent(this.options.allowReserved !== "never")
   };
 
   // Initialize empty function node.
 
-  pp$4.initFunction = function(node) {
+  pp$5.initFunction = function(node) {
     node.id = null;
     if (this.options.ecmaVersion >= 6) { node.generator = node.expression = false; }
     if (this.options.ecmaVersion >= 8) { node.async = false; }
@@ -3161,7 +3179,7 @@
 
   // Parse object or class method.
 
-  pp$4.parseMethod = function(isGenerator, isAsync, allowDirectSuper) {
+  pp$5.parseMethod = function(isGenerator, isAsync, allowDirectSuper) {
     var node = this.startNode(), oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos;
 
     this.initFunction(node);
@@ -3175,8 +3193,8 @@
     this.awaitIdentPos = 0;
     this.enterScope(functionFlags(isAsync, node.generator) | SCOPE_SUPER | (allowDirectSuper ? SCOPE_DIRECT_SUPER : 0));
 
-    this.expect(types.parenL);
-    node.params = this.parseBindingList(types.parenR, false, this.options.ecmaVersion >= 8);
+    this.expect(types$1.parenL);
+    node.params = this.parseBindingList(types$1.parenR, false, this.options.ecmaVersion >= 8);
     this.checkYieldAwaitInDefaultParams();
     this.parseFunctionBody(node, false, true, false);
 
@@ -3188,7 +3206,7 @@
 
   // Parse arrow function expression with given parameters.
 
-  pp$4.parseArrowExpression = function(node, params, isAsync, forInit) {
+  pp$5.parseArrowExpression = function(node, params, isAsync, forInit) {
     var oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos;
 
     this.enterScope(functionFlags(isAsync, false) | SCOPE_ARROW);
@@ -3210,8 +3228,8 @@
 
   // Parse function body and check parameters.
 
-  pp$4.parseFunctionBody = function(node, isArrowFunction, isMethod, forInit) {
-    var isExpression = isArrowFunction && this.type !== types.braceL;
+  pp$5.parseFunctionBody = function(node, isArrowFunction, isMethod, forInit) {
+    var isExpression = isArrowFunction && this.type !== types$1.braceL;
     var oldStrict = this.strict, useStrict = false;
 
     if (isExpression) {
@@ -3247,7 +3265,7 @@
     this.exitScope();
   };
 
-  pp$4.isSimpleParamList = function(params) {
+  pp$5.isSimpleParamList = function(params) {
     for (var i = 0, list = params; i < list.length; i += 1)
       {
       var param = list[i];
@@ -3260,7 +3278,7 @@
   // Checks function params for various disallowed patterns such as using "eval"
   // or "arguments" and duplicate parameters.
 
-  pp$4.checkParams = function(node, allowDuplicates) {
+  pp$5.checkParams = function(node, allowDuplicates) {
     var nameHash = Object.create(null);
     for (var i = 0, list = node.params; i < list.length; i += 1)
       {
@@ -3276,20 +3294,20 @@
   // nothing in between them to be parsed as `null` (which is needed
   // for array literals).
 
-  pp$4.parseExprList = function(close, allowTrailingComma, allowEmpty, refDestructuringErrors) {
+  pp$5.parseExprList = function(close, allowTrailingComma, allowEmpty, refDestructuringErrors) {
     var elts = [], first = true;
     while (!this.eat(close)) {
       if (!first) {
-        this.expect(types.comma);
+        this.expect(types$1.comma);
         if (allowTrailingComma && this.afterTrailingComma(close)) { break }
       } else { first = false; }
 
       var elt = (void 0);
-      if (allowEmpty && this.type === types.comma)
+      if (allowEmpty && this.type === types$1.comma)
         { elt = null; }
-      else if (this.type === types.ellipsis) {
+      else if (this.type === types$1.ellipsis) {
         elt = this.parseSpread(refDestructuringErrors);
-        if (refDestructuringErrors && this.type === types.comma && refDestructuringErrors.trailingComma < 0)
+        if (refDestructuringErrors && this.type === types$1.comma && refDestructuringErrors.trailingComma < 0)
           { refDestructuringErrors.trailingComma = this.start; }
       } else {
         elt = this.parseMaybeAssign(false, refDestructuringErrors);
@@ -3299,7 +3317,7 @@
     return elts
   };
 
-  pp$4.checkUnreserved = function(ref) {
+  pp$5.checkUnreserved = function(ref) {
     var start = ref.start;
     var end = ref.end;
     var name = ref.name;
@@ -3328,9 +3346,9 @@
   // when parsing properties), it will also convert keywords into
   // identifiers.
 
-  pp$4.parseIdent = function(liberal, isBinding) {
+  pp$5.parseIdent = function(liberal, isBinding) {
     var node = this.startNode();
-    if (this.type === types.name) {
+    if (this.type === types$1.name) {
       node.name = this.value;
     } else if (this.type.keyword) {
       node.name = this.type.keyword;
@@ -3356,9 +3374,9 @@
     return node
   };
 
-  pp$4.parsePrivateIdent = function() {
+  pp$5.parsePrivateIdent = function() {
     var node = this.startNode();
-    if (this.type === types.privateId) {
+    if (this.type === types$1.privateId) {
       node.name = this.value;
     } else {
       this.unexpected();
@@ -3378,22 +3396,22 @@
 
   // Parses yield expression inside generator.
 
-  pp$4.parseYield = function(forInit) {
+  pp$5.parseYield = function(forInit) {
     if (!this.yieldPos) { this.yieldPos = this.start; }
 
     var node = this.startNode();
     this.next();
-    if (this.type === types.semi || this.canInsertSemicolon() || (this.type !== types.star && !this.type.startsExpr)) {
+    if (this.type === types$1.semi || this.canInsertSemicolon() || (this.type !== types$1.star && !this.type.startsExpr)) {
       node.delegate = false;
       node.argument = null;
     } else {
-      node.delegate = this.eat(types.star);
+      node.delegate = this.eat(types$1.star);
       node.argument = this.parseMaybeAssign(forInit);
     }
     return this.finishNode(node, "YieldExpression")
   };
 
-  pp$4.parseAwait = function(forInit) {
+  pp$5.parseAwait = function(forInit) {
     if (!this.awaitPos) { this.awaitPos = this.start; }
 
     var node = this.startNode();
@@ -3402,7 +3420,7 @@
     return this.finishNode(node, "AwaitExpression")
   };
 
-  var pp$5 = Parser.prototype;
+  var pp$4 = Parser.prototype;
 
   // This function is used to raise exceptions on parse errors. It
   // takes an offset integer (into the current `input`) to indicate
@@ -3410,7 +3428,7 @@
   // of the error message, and then raises a `SyntaxError` with that
   // message.
 
-  pp$5.raise = function(pos, message) {
+  pp$4.raise = function(pos, message) {
     var loc = getLineInfo(this.input, pos);
     message += " (" + loc.line + ":" + loc.column + ")";
     var err = new SyntaxError(message);
@@ -3418,15 +3436,15 @@
     throw err
   };
 
-  pp$5.raiseRecoverable = pp$5.raise;
+  pp$4.raiseRecoverable = pp$4.raise;
 
-  pp$5.curPosition = function() {
+  pp$4.curPosition = function() {
     if (this.options.locations) {
       return new Position(this.curLine, this.pos - this.lineStart)
     }
   };
 
-  var pp$6 = Parser.prototype;
+  var pp$3 = Parser.prototype;
 
   var Scope = function Scope(flags) {
     this.flags = flags;
@@ -3442,22 +3460,22 @@
 
   // The functions in this module keep track of declared variables in the current scope in order to detect duplicate variable names.
 
-  pp$6.enterScope = function(flags) {
+  pp$3.enterScope = function(flags) {
     this.scopeStack.push(new Scope(flags));
   };
 
-  pp$6.exitScope = function() {
+  pp$3.exitScope = function() {
     this.scopeStack.pop();
   };
 
   // The spec says:
   // > At the top level of a function, or script, function declarations are
   // > treated like var declarations rather than like lexical declarations.
-  pp$6.treatFunctionsAsVarInScope = function(scope) {
+  pp$3.treatFunctionsAsVarInScope = function(scope) {
     return (scope.flags & SCOPE_FUNCTION) || !this.inModule && (scope.flags & SCOPE_TOP)
   };
 
-  pp$6.declareName = function(name, bindingType, pos) {
+  pp$3.declareName = function(name, bindingType, pos) {
     var redeclared = false;
     if (bindingType === BIND_LEXICAL) {
       var scope = this.currentScope();
@@ -3492,7 +3510,7 @@
     if (redeclared) { this.raiseRecoverable(pos, ("Identifier '" + name + "' has already been declared")); }
   };
 
-  pp$6.checkLocalExport = function(id) {
+  pp$3.checkLocalExport = function(id) {
     // scope.functions must be empty as Module code is always strict.
     if (this.scopeStack[0].lexical.indexOf(id.name) === -1 &&
         this.scopeStack[0].var.indexOf(id.name) === -1) {
@@ -3500,11 +3518,11 @@
     }
   };
 
-  pp$6.currentScope = function() {
+  pp$3.currentScope = function() {
     return this.scopeStack[this.scopeStack.length - 1]
   };
 
-  pp$6.currentVarScope = function() {
+  pp$3.currentVarScope = function() {
     for (var i = this.scopeStack.length - 1;; i--) {
       var scope = this.scopeStack[i];
       if (scope.flags & SCOPE_VAR) { return scope }
@@ -3512,7 +3530,7 @@
   };
 
   // Could be useful for `this`, `new.target`, `super()`, `super.property`, and `super[property]`.
-  pp$6.currentThisScope = function() {
+  pp$3.currentThisScope = function() {
     for (var i = this.scopeStack.length - 1;; i--) {
       var scope = this.scopeStack[i];
       if (scope.flags & SCOPE_VAR && !(scope.flags & SCOPE_ARROW)) { return scope }
@@ -3533,13 +3551,13 @@
 
   // Start an AST node, attaching a start offset.
 
-  var pp$7 = Parser.prototype;
+  var pp$2 = Parser.prototype;
 
-  pp$7.startNode = function() {
+  pp$2.startNode = function() {
     return new Node(this, this.start, this.startLoc)
   };
 
-  pp$7.startNodeAt = function(pos, loc) {
+  pp$2.startNodeAt = function(pos, loc) {
     return new Node(this, pos, loc)
   };
 
@@ -3555,17 +3573,17 @@
     return node
   }
 
-  pp$7.finishNode = function(node, type) {
+  pp$2.finishNode = function(node, type) {
     return finishNodeAt.call(this, node, type, this.lastTokEnd, this.lastTokEndLoc)
   };
 
   // Finish node at given position
 
-  pp$7.finishNodeAt = function(node, type, pos, loc) {
+  pp$2.finishNodeAt = function(node, type, pos, loc) {
     return finishNodeAt.call(this, node, type, pos, loc)
   };
 
-  pp$7.copyNode = function(node) {
+  pp$2.copyNode = function(node) {
     var newNode = new Node(this, node.start, this.startLoc);
     for (var prop in node) { newNode[prop] = node[prop]; }
     return newNode
@@ -3622,7 +3640,7 @@
   buildUnicodeData(11);
   buildUnicodeData(12);
 
-  var pp$8 = Parser.prototype;
+  var pp$1 = Parser.prototype;
 
   var RegExpValidationState = function RegExpValidationState(parser) {
     this.parser = parser;
@@ -3718,7 +3736,7 @@
     return false
   };
 
-  function codePointToString(ch) {
+  function codePointToString$1(ch) {
     if (ch <= 0xFFFF) { return String.fromCharCode(ch) }
     ch -= 0x10000;
     return String.fromCharCode((ch >> 10) + 0xD800, (ch & 0x03FF) + 0xDC00)
@@ -3730,7 +3748,7 @@
    * @param {RegExpValidationState} state The state to validate RegExp.
    * @returns {void}
    */
-  pp$8.validateRegExpFlags = function(state) {
+  pp$1.validateRegExpFlags = function(state) {
     var validFlags = state.validFlags;
     var flags = state.flags;
 
@@ -3751,7 +3769,7 @@
    * @param {RegExpValidationState} state The state to validate RegExp.
    * @returns {void}
    */
-  pp$8.validateRegExpPattern = function(state) {
+  pp$1.validateRegExpPattern = function(state) {
     this.regexp_pattern(state);
 
     // The goal symbol for the parse is |Pattern[~U, ~N]|. If the result of
@@ -3766,7 +3784,7 @@
   };
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-Pattern
-  pp$8.regexp_pattern = function(state) {
+  pp$1.regexp_pattern = function(state) {
     state.pos = 0;
     state.lastIntValue = 0;
     state.lastStringValue = "";
@@ -3800,7 +3818,7 @@
   };
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-Disjunction
-  pp$8.regexp_disjunction = function(state) {
+  pp$1.regexp_disjunction = function(state) {
     this.regexp_alternative(state);
     while (state.eat(0x7C /* | */)) {
       this.regexp_alternative(state);
@@ -3816,13 +3834,13 @@
   };
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-Alternative
-  pp$8.regexp_alternative = function(state) {
+  pp$1.regexp_alternative = function(state) {
     while (state.pos < state.source.length && this.regexp_eatTerm(state))
       { }
   };
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-Term
-  pp$8.regexp_eatTerm = function(state) {
+  pp$1.regexp_eatTerm = function(state) {
     if (this.regexp_eatAssertion(state)) {
       // Handle `QuantifiableAssertion Quantifier` alternative.
       // `state.lastAssertionIsQuantifiable` is true if the last eaten Assertion
@@ -3845,7 +3863,7 @@
   };
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-Assertion
-  pp$8.regexp_eatAssertion = function(state) {
+  pp$1.regexp_eatAssertion = function(state) {
     var start = state.pos;
     state.lastAssertionIsQuantifiable = false;
 
@@ -3883,7 +3901,7 @@
   };
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-Quantifier
-  pp$8.regexp_eatQuantifier = function(state, noError) {
+  pp$1.regexp_eatQuantifier = function(state, noError) {
     if ( noError === void 0 ) noError = false;
 
     if (this.regexp_eatQuantifierPrefix(state, noError)) {
@@ -3894,7 +3912,7 @@
   };
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-QuantifierPrefix
-  pp$8.regexp_eatQuantifierPrefix = function(state, noError) {
+  pp$1.regexp_eatQuantifierPrefix = function(state, noError) {
     return (
       state.eat(0x2A /* * */) ||
       state.eat(0x2B /* + */) ||
@@ -3902,7 +3920,7 @@
       this.regexp_eatBracedQuantifier(state, noError)
     )
   };
-  pp$8.regexp_eatBracedQuantifier = function(state, noError) {
+  pp$1.regexp_eatBracedQuantifier = function(state, noError) {
     var start = state.pos;
     if (state.eat(0x7B /* { */)) {
       var min = 0, max = -1;
@@ -3928,7 +3946,7 @@
   };
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-Atom
-  pp$8.regexp_eatAtom = function(state) {
+  pp$1.regexp_eatAtom = function(state) {
     return (
       this.regexp_eatPatternCharacters(state) ||
       state.eat(0x2E /* . */) ||
@@ -3938,7 +3956,7 @@
       this.regexp_eatCapturingGroup(state)
     )
   };
-  pp$8.regexp_eatReverseSolidusAtomEscape = function(state) {
+  pp$1.regexp_eatReverseSolidusAtomEscape = function(state) {
     var start = state.pos;
     if (state.eat(0x5C /* \ */)) {
       if (this.regexp_eatAtomEscape(state)) {
@@ -3948,7 +3966,7 @@
     }
     return false
   };
-  pp$8.regexp_eatUncapturingGroup = function(state) {
+  pp$1.regexp_eatUncapturingGroup = function(state) {
     var start = state.pos;
     if (state.eat(0x28 /* ( */)) {
       if (state.eat(0x3F /* ? */) && state.eat(0x3A /* : */)) {
@@ -3962,7 +3980,7 @@
     }
     return false
   };
-  pp$8.regexp_eatCapturingGroup = function(state) {
+  pp$1.regexp_eatCapturingGroup = function(state) {
     if (state.eat(0x28 /* ( */)) {
       if (this.options.ecmaVersion >= 9) {
         this.regexp_groupSpecifier(state);
@@ -3980,7 +3998,7 @@
   };
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ExtendedAtom
-  pp$8.regexp_eatExtendedAtom = function(state) {
+  pp$1.regexp_eatExtendedAtom = function(state) {
     return (
       state.eat(0x2E /* . */) ||
       this.regexp_eatReverseSolidusAtomEscape(state) ||
@@ -3993,7 +4011,7 @@
   };
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-InvalidBracedQuantifier
-  pp$8.regexp_eatInvalidBracedQuantifier = function(state) {
+  pp$1.regexp_eatInvalidBracedQuantifier = function(state) {
     if (this.regexp_eatBracedQuantifier(state, true)) {
       state.raise("Nothing to repeat");
     }
@@ -4001,7 +4019,7 @@
   };
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-SyntaxCharacter
-  pp$8.regexp_eatSyntaxCharacter = function(state) {
+  pp$1.regexp_eatSyntaxCharacter = function(state) {
     var ch = state.current();
     if (isSyntaxCharacter(ch)) {
       state.lastIntValue = ch;
@@ -4023,7 +4041,7 @@
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-PatternCharacter
   // But eat eager.
-  pp$8.regexp_eatPatternCharacters = function(state) {
+  pp$1.regexp_eatPatternCharacters = function(state) {
     var start = state.pos;
     var ch = 0;
     while ((ch = state.current()) !== -1 && !isSyntaxCharacter(ch)) {
@@ -4033,7 +4051,7 @@
   };
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ExtendedPatternCharacter
-  pp$8.regexp_eatExtendedPatternCharacter = function(state) {
+  pp$1.regexp_eatExtendedPatternCharacter = function(state) {
     var ch = state.current();
     if (
       ch !== -1 &&
@@ -4054,7 +4072,7 @@
   // GroupSpecifier ::
   //   [empty]
   //   `?` GroupName
-  pp$8.regexp_groupSpecifier = function(state) {
+  pp$1.regexp_groupSpecifier = function(state) {
     if (state.eat(0x3F /* ? */)) {
       if (this.regexp_eatGroupName(state)) {
         if (state.groupNames.indexOf(state.lastStringValue) !== -1) {
@@ -4070,7 +4088,7 @@
   // GroupName ::
   //   `<` RegExpIdentifierName `>`
   // Note: this updates `state.lastStringValue` property with the eaten name.
-  pp$8.regexp_eatGroupName = function(state) {
+  pp$1.regexp_eatGroupName = function(state) {
     state.lastStringValue = "";
     if (state.eat(0x3C /* < */)) {
       if (this.regexp_eatRegExpIdentifierName(state) && state.eat(0x3E /* > */)) {
@@ -4085,12 +4103,12 @@
   //   RegExpIdentifierStart
   //   RegExpIdentifierName RegExpIdentifierPart
   // Note: this updates `state.lastStringValue` property with the eaten name.
-  pp$8.regexp_eatRegExpIdentifierName = function(state) {
+  pp$1.regexp_eatRegExpIdentifierName = function(state) {
     state.lastStringValue = "";
     if (this.regexp_eatRegExpIdentifierStart(state)) {
-      state.lastStringValue += codePointToString(state.lastIntValue);
+      state.lastStringValue += codePointToString$1(state.lastIntValue);
       while (this.regexp_eatRegExpIdentifierPart(state)) {
-        state.lastStringValue += codePointToString(state.lastIntValue);
+        state.lastStringValue += codePointToString$1(state.lastIntValue);
       }
       return true
     }
@@ -4102,7 +4120,7 @@
   //   `$`
   //   `_`
   //   `\` RegExpUnicodeEscapeSequence[+U]
-  pp$8.regexp_eatRegExpIdentifierStart = function(state) {
+  pp$1.regexp_eatRegExpIdentifierStart = function(state) {
     var start = state.pos;
     var forceU = this.options.ecmaVersion >= 11;
     var ch = state.current(forceU);
@@ -4130,7 +4148,7 @@
   //   `\` RegExpUnicodeEscapeSequence[+U]
   //   <ZWNJ>
   //   <ZWJ>
-  pp$8.regexp_eatRegExpIdentifierPart = function(state) {
+  pp$1.regexp_eatRegExpIdentifierPart = function(state) {
     var start = state.pos;
     var forceU = this.options.ecmaVersion >= 11;
     var ch = state.current(forceU);
@@ -4152,7 +4170,7 @@
   }
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-AtomEscape
-  pp$8.regexp_eatAtomEscape = function(state) {
+  pp$1.regexp_eatAtomEscape = function(state) {
     if (
       this.regexp_eatBackReference(state) ||
       this.regexp_eatCharacterClassEscape(state) ||
@@ -4170,7 +4188,7 @@
     }
     return false
   };
-  pp$8.regexp_eatBackReference = function(state) {
+  pp$1.regexp_eatBackReference = function(state) {
     var start = state.pos;
     if (this.regexp_eatDecimalEscape(state)) {
       var n = state.lastIntValue;
@@ -4188,7 +4206,7 @@
     }
     return false
   };
-  pp$8.regexp_eatKGroupName = function(state) {
+  pp$1.regexp_eatKGroupName = function(state) {
     if (state.eat(0x6B /* k */)) {
       if (this.regexp_eatGroupName(state)) {
         state.backReferenceNames.push(state.lastStringValue);
@@ -4200,7 +4218,7 @@
   };
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-CharacterEscape
-  pp$8.regexp_eatCharacterEscape = function(state) {
+  pp$1.regexp_eatCharacterEscape = function(state) {
     return (
       this.regexp_eatControlEscape(state) ||
       this.regexp_eatCControlLetter(state) ||
@@ -4211,7 +4229,7 @@
       this.regexp_eatIdentityEscape(state)
     )
   };
-  pp$8.regexp_eatCControlLetter = function(state) {
+  pp$1.regexp_eatCControlLetter = function(state) {
     var start = state.pos;
     if (state.eat(0x63 /* c */)) {
       if (this.regexp_eatControlLetter(state)) {
@@ -4221,7 +4239,7 @@
     }
     return false
   };
-  pp$8.regexp_eatZero = function(state) {
+  pp$1.regexp_eatZero = function(state) {
     if (state.current() === 0x30 /* 0 */ && !isDecimalDigit(state.lookahead())) {
       state.lastIntValue = 0;
       state.advance();
@@ -4231,7 +4249,7 @@
   };
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-ControlEscape
-  pp$8.regexp_eatControlEscape = function(state) {
+  pp$1.regexp_eatControlEscape = function(state) {
     var ch = state.current();
     if (ch === 0x74 /* t */) {
       state.lastIntValue = 0x09; /* \t */
@@ -4262,7 +4280,7 @@
   };
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-ControlLetter
-  pp$8.regexp_eatControlLetter = function(state) {
+  pp$1.regexp_eatControlLetter = function(state) {
     var ch = state.current();
     if (isControlLetter(ch)) {
       state.lastIntValue = ch % 0x20;
@@ -4279,7 +4297,7 @@
   }
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-RegExpUnicodeEscapeSequence
-  pp$8.regexp_eatRegExpUnicodeEscapeSequence = function(state, forceU) {
+  pp$1.regexp_eatRegExpUnicodeEscapeSequence = function(state, forceU) {
     if ( forceU === void 0 ) forceU = false;
 
     var start = state.pos;
@@ -4324,7 +4342,7 @@
   }
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-IdentityEscape
-  pp$8.regexp_eatIdentityEscape = function(state) {
+  pp$1.regexp_eatIdentityEscape = function(state) {
     if (state.switchU) {
       if (this.regexp_eatSyntaxCharacter(state)) {
         return true
@@ -4347,7 +4365,7 @@
   };
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-DecimalEscape
-  pp$8.regexp_eatDecimalEscape = function(state) {
+  pp$1.regexp_eatDecimalEscape = function(state) {
     state.lastIntValue = 0;
     var ch = state.current();
     if (ch >= 0x31 /* 1 */ && ch <= 0x39 /* 9 */) {
@@ -4361,7 +4379,7 @@
   };
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-CharacterClassEscape
-  pp$8.regexp_eatCharacterClassEscape = function(state) {
+  pp$1.regexp_eatCharacterClassEscape = function(state) {
     var ch = state.current();
 
     if (isCharacterClassEscape(ch)) {
@@ -4403,7 +4421,7 @@
   // UnicodePropertyValueExpression ::
   //   UnicodePropertyName `=` UnicodePropertyValue
   //   LoneUnicodePropertyNameOrValue
-  pp$8.regexp_eatUnicodePropertyValueExpression = function(state) {
+  pp$1.regexp_eatUnicodePropertyValueExpression = function(state) {
     var start = state.pos;
 
     // UnicodePropertyName `=` UnicodePropertyValue
@@ -4425,24 +4443,24 @@
     }
     return false
   };
-  pp$8.regexp_validateUnicodePropertyNameAndValue = function(state, name, value) {
+  pp$1.regexp_validateUnicodePropertyNameAndValue = function(state, name, value) {
     if (!has(state.unicodeProperties.nonBinary, name))
       { state.raise("Invalid property name"); }
     if (!state.unicodeProperties.nonBinary[name].test(value))
       { state.raise("Invalid property value"); }
   };
-  pp$8.regexp_validateUnicodePropertyNameOrValue = function(state, nameOrValue) {
+  pp$1.regexp_validateUnicodePropertyNameOrValue = function(state, nameOrValue) {
     if (!state.unicodeProperties.binary.test(nameOrValue))
       { state.raise("Invalid property name"); }
   };
 
   // UnicodePropertyName ::
   //   UnicodePropertyNameCharacters
-  pp$8.regexp_eatUnicodePropertyName = function(state) {
+  pp$1.regexp_eatUnicodePropertyName = function(state) {
     var ch = 0;
     state.lastStringValue = "";
     while (isUnicodePropertyNameCharacter(ch = state.current())) {
-      state.lastStringValue += codePointToString(ch);
+      state.lastStringValue += codePointToString$1(ch);
       state.advance();
     }
     return state.lastStringValue !== ""
@@ -4453,11 +4471,11 @@
 
   // UnicodePropertyValue ::
   //   UnicodePropertyValueCharacters
-  pp$8.regexp_eatUnicodePropertyValue = function(state) {
+  pp$1.regexp_eatUnicodePropertyValue = function(state) {
     var ch = 0;
     state.lastStringValue = "";
     while (isUnicodePropertyValueCharacter(ch = state.current())) {
-      state.lastStringValue += codePointToString(ch);
+      state.lastStringValue += codePointToString$1(ch);
       state.advance();
     }
     return state.lastStringValue !== ""
@@ -4468,12 +4486,12 @@
 
   // LoneUnicodePropertyNameOrValue ::
   //   UnicodePropertyValueCharacters
-  pp$8.regexp_eatLoneUnicodePropertyNameOrValue = function(state) {
+  pp$1.regexp_eatLoneUnicodePropertyNameOrValue = function(state) {
     return this.regexp_eatUnicodePropertyValue(state)
   };
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-CharacterClass
-  pp$8.regexp_eatCharacterClass = function(state) {
+  pp$1.regexp_eatCharacterClass = function(state) {
     if (state.eat(0x5B /* [ */)) {
       state.eat(0x5E /* ^ */);
       this.regexp_classRanges(state);
@@ -4489,7 +4507,7 @@
   // https://www.ecma-international.org/ecma-262/8.0/#prod-ClassRanges
   // https://www.ecma-international.org/ecma-262/8.0/#prod-NonemptyClassRanges
   // https://www.ecma-international.org/ecma-262/8.0/#prod-NonemptyClassRangesNoDash
-  pp$8.regexp_classRanges = function(state) {
+  pp$1.regexp_classRanges = function(state) {
     while (this.regexp_eatClassAtom(state)) {
       var left = state.lastIntValue;
       if (state.eat(0x2D /* - */) && this.regexp_eatClassAtom(state)) {
@@ -4506,7 +4524,7 @@
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-ClassAtom
   // https://www.ecma-international.org/ecma-262/8.0/#prod-ClassAtomNoDash
-  pp$8.regexp_eatClassAtom = function(state) {
+  pp$1.regexp_eatClassAtom = function(state) {
     var start = state.pos;
 
     if (state.eat(0x5C /* \ */)) {
@@ -4535,7 +4553,7 @@
   };
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ClassEscape
-  pp$8.regexp_eatClassEscape = function(state) {
+  pp$1.regexp_eatClassEscape = function(state) {
     var start = state.pos;
 
     if (state.eat(0x62 /* b */)) {
@@ -4562,7 +4580,7 @@
   };
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ClassControlLetter
-  pp$8.regexp_eatClassControlLetter = function(state) {
+  pp$1.regexp_eatClassControlLetter = function(state) {
     var ch = state.current();
     if (isDecimalDigit(ch) || ch === 0x5F /* _ */) {
       state.lastIntValue = ch % 0x20;
@@ -4573,7 +4591,7 @@
   };
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-HexEscapeSequence
-  pp$8.regexp_eatHexEscapeSequence = function(state) {
+  pp$1.regexp_eatHexEscapeSequence = function(state) {
     var start = state.pos;
     if (state.eat(0x78 /* x */)) {
       if (this.regexp_eatFixedHexDigits(state, 2)) {
@@ -4588,7 +4606,7 @@
   };
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-DecimalDigits
-  pp$8.regexp_eatDecimalDigits = function(state) {
+  pp$1.regexp_eatDecimalDigits = function(state) {
     var start = state.pos;
     var ch = 0;
     state.lastIntValue = 0;
@@ -4603,7 +4621,7 @@
   }
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-HexDigits
-  pp$8.regexp_eatHexDigits = function(state) {
+  pp$1.regexp_eatHexDigits = function(state) {
     var start = state.pos;
     var ch = 0;
     state.lastIntValue = 0;
@@ -4632,7 +4650,7 @@
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-LegacyOctalEscapeSequence
   // Allows only 0-377(octal) i.e. 0-255(decimal).
-  pp$8.regexp_eatLegacyOctalEscapeSequence = function(state) {
+  pp$1.regexp_eatLegacyOctalEscapeSequence = function(state) {
     if (this.regexp_eatOctalDigit(state)) {
       var n1 = state.lastIntValue;
       if (this.regexp_eatOctalDigit(state)) {
@@ -4651,7 +4669,7 @@
   };
 
   // https://www.ecma-international.org/ecma-262/8.0/#prod-OctalDigit
-  pp$8.regexp_eatOctalDigit = function(state) {
+  pp$1.regexp_eatOctalDigit = function(state) {
     var ch = state.current();
     if (isOctalDigit(ch)) {
       state.lastIntValue = ch - 0x30; /* 0 */
@@ -4668,7 +4686,7 @@
   // https://www.ecma-international.org/ecma-262/8.0/#prod-Hex4Digits
   // https://www.ecma-international.org/ecma-262/8.0/#prod-HexDigit
   // And HexDigit HexDigit in https://www.ecma-international.org/ecma-262/8.0/#prod-HexEscapeSequence
-  pp$8.regexp_eatFixedHexDigits = function(state, length) {
+  pp$1.regexp_eatFixedHexDigits = function(state, length) {
     var start = state.pos;
     state.lastIntValue = 0;
     for (var i = 0; i < length; ++i) {
@@ -4700,11 +4718,11 @@
 
   // ## Tokenizer
 
-  var pp$9 = Parser.prototype;
+  var pp = Parser.prototype;
 
   // Move to the next token
 
-  pp$9.next = function(ignoreEscapeSequenceInKeyword) {
+  pp.next = function(ignoreEscapeSequenceInKeyword) {
     if (!ignoreEscapeSequenceInKeyword && this.type.keyword && this.containsEsc)
       { this.raiseRecoverable(this.start, "Escape sequence in keyword " + this.type.keyword); }
     if (this.options.onToken)
@@ -4717,21 +4735,21 @@
     this.nextToken();
   };
 
-  pp$9.getToken = function() {
+  pp.getToken = function() {
     this.next();
     return new Token(this)
   };
 
   // If we're in an ES6 environment, make parsers iterable
   if (typeof Symbol !== "undefined")
-    { pp$9[Symbol.iterator] = function() {
-      var this$1 = this;
+    { pp[Symbol.iterator] = function() {
+      var this$1$1 = this;
 
       return {
         next: function () {
-          var token = this$1.getToken();
+          var token = this$1$1.getToken();
           return {
-            done: token.type === types.eof,
+            done: token.type === types$1.eof,
             value: token
           }
         }
@@ -4744,19 +4762,19 @@
   // Read a single token, updating the parser object's token-related
   // properties.
 
-  pp$9.nextToken = function() {
+  pp.nextToken = function() {
     var curContext = this.curContext();
     if (!curContext || !curContext.preserveSpace) { this.skipSpace(); }
 
     this.start = this.pos;
     if (this.options.locations) { this.startLoc = this.curPosition(); }
-    if (this.pos >= this.input.length) { return this.finishToken(types.eof) }
+    if (this.pos >= this.input.length) { return this.finishToken(types$1.eof) }
 
     if (curContext.override) { return curContext.override(this) }
     else { this.readToken(this.fullCharCodeAtPos()); }
   };
 
-  pp$9.readToken = function(code) {
+  pp.readToken = function(code) {
     // Identifier or keyword. '\uXXXX' sequences are allowed in
     // identifiers, so '\' also dispatches to that.
     if (isIdentifierStart(code, this.options.ecmaVersion >= 6) || code === 92 /* '\' */)
@@ -4765,14 +4783,14 @@
     return this.getTokenFromCode(code)
   };
 
-  pp$9.fullCharCodeAtPos = function() {
+  pp.fullCharCodeAtPos = function() {
     var code = this.input.charCodeAt(this.pos);
     if (code <= 0xd7ff || code >= 0xdc00) { return code }
     var next = this.input.charCodeAt(this.pos + 1);
     return next <= 0xdbff || next >= 0xe000 ? code : (code << 10) + next - 0x35fdc00
   };
 
-  pp$9.skipBlockComment = function() {
+  pp.skipBlockComment = function() {
     var startLoc = this.options.onComment && this.curPosition();
     var start = this.pos, end = this.input.indexOf("*/", this.pos += 2);
     if (end === -1) { this.raise(this.pos - 2, "Unterminated comment"); }
@@ -4790,7 +4808,7 @@
                              startLoc, this.curPosition()); }
   };
 
-  pp$9.skipLineComment = function(startSkip) {
+  pp.skipLineComment = function(startSkip) {
     var start = this.pos;
     var startLoc = this.options.onComment && this.curPosition();
     var ch = this.input.charCodeAt(this.pos += startSkip);
@@ -4805,7 +4823,7 @@
   // Called at the start of the parse and after every token. Skips
   // whitespace and comments, and.
 
-  pp$9.skipSpace = function() {
+  pp.skipSpace = function() {
     loop: while (this.pos < this.input.length) {
       var ch = this.input.charCodeAt(this.pos);
       switch (ch) {
@@ -4850,7 +4868,7 @@
   // the token, so that the next one's `start` will point at the
   // right position.
 
-  pp$9.finishToken = function(type, val) {
+  pp.finishToken = function(type, val) {
     this.end = this.pos;
     if (this.options.locations) { this.endLoc = this.curPosition(); }
     var prevType = this.type;
@@ -4869,62 +4887,62 @@
   //
   // All in the name of speed.
   //
-  pp$9.readToken_dot = function() {
+  pp.readToken_dot = function() {
     var next = this.input.charCodeAt(this.pos + 1);
     if (next >= 48 && next <= 57) { return this.readNumber(true) }
     var next2 = this.input.charCodeAt(this.pos + 2);
     if (this.options.ecmaVersion >= 6 && next === 46 && next2 === 46) { // 46 = dot '.'
       this.pos += 3;
-      return this.finishToken(types.ellipsis)
+      return this.finishToken(types$1.ellipsis)
     } else {
       ++this.pos;
-      return this.finishToken(types.dot)
+      return this.finishToken(types$1.dot)
     }
   };
 
-  pp$9.readToken_slash = function() { // '/'
+  pp.readToken_slash = function() { // '/'
     var next = this.input.charCodeAt(this.pos + 1);
     if (this.exprAllowed) { ++this.pos; return this.readRegexp() }
-    if (next === 61) { return this.finishOp(types.assign, 2) }
-    return this.finishOp(types.slash, 1)
+    if (next === 61) { return this.finishOp(types$1.assign, 2) }
+    return this.finishOp(types$1.slash, 1)
   };
 
-  pp$9.readToken_mult_modulo_exp = function(code) { // '%*'
+  pp.readToken_mult_modulo_exp = function(code) { // '%*'
     var next = this.input.charCodeAt(this.pos + 1);
     var size = 1;
-    var tokentype = code === 42 ? types.star : types.modulo;
+    var tokentype = code === 42 ? types$1.star : types$1.modulo;
 
     // exponentiation operator ** and **=
     if (this.options.ecmaVersion >= 7 && code === 42 && next === 42) {
       ++size;
-      tokentype = types.starstar;
+      tokentype = types$1.starstar;
       next = this.input.charCodeAt(this.pos + 2);
     }
 
-    if (next === 61) { return this.finishOp(types.assign, size + 1) }
+    if (next === 61) { return this.finishOp(types$1.assign, size + 1) }
     return this.finishOp(tokentype, size)
   };
 
-  pp$9.readToken_pipe_amp = function(code) { // '|&'
+  pp.readToken_pipe_amp = function(code) { // '|&'
     var next = this.input.charCodeAt(this.pos + 1);
     if (next === code) {
       if (this.options.ecmaVersion >= 12) {
         var next2 = this.input.charCodeAt(this.pos + 2);
-        if (next2 === 61) { return this.finishOp(types.assign, 3) }
+        if (next2 === 61) { return this.finishOp(types$1.assign, 3) }
       }
-      return this.finishOp(code === 124 ? types.logicalOR : types.logicalAND, 2)
+      return this.finishOp(code === 124 ? types$1.logicalOR : types$1.logicalAND, 2)
     }
-    if (next === 61) { return this.finishOp(types.assign, 2) }
-    return this.finishOp(code === 124 ? types.bitwiseOR : types.bitwiseAND, 1)
+    if (next === 61) { return this.finishOp(types$1.assign, 2) }
+    return this.finishOp(code === 124 ? types$1.bitwiseOR : types$1.bitwiseAND, 1)
   };
 
-  pp$9.readToken_caret = function() { // '^'
+  pp.readToken_caret = function() { // '^'
     var next = this.input.charCodeAt(this.pos + 1);
-    if (next === 61) { return this.finishOp(types.assign, 2) }
-    return this.finishOp(types.bitwiseXOR, 1)
+    if (next === 61) { return this.finishOp(types$1.assign, 2) }
+    return this.finishOp(types$1.bitwiseXOR, 1)
   };
 
-  pp$9.readToken_plus_min = function(code) { // '+-'
+  pp.readToken_plus_min = function(code) { // '+-'
     var next = this.input.charCodeAt(this.pos + 1);
     if (next === code) {
       if (next === 45 && !this.inModule && this.input.charCodeAt(this.pos + 2) === 62 &&
@@ -4934,19 +4952,19 @@
         this.skipSpace();
         return this.nextToken()
       }
-      return this.finishOp(types.incDec, 2)
+      return this.finishOp(types$1.incDec, 2)
     }
-    if (next === 61) { return this.finishOp(types.assign, 2) }
-    return this.finishOp(types.plusMin, 1)
+    if (next === 61) { return this.finishOp(types$1.assign, 2) }
+    return this.finishOp(types$1.plusMin, 1)
   };
 
-  pp$9.readToken_lt_gt = function(code) { // '<>'
+  pp.readToken_lt_gt = function(code) { // '<>'
     var next = this.input.charCodeAt(this.pos + 1);
     var size = 1;
     if (next === code) {
       size = code === 62 && this.input.charCodeAt(this.pos + 2) === 62 ? 3 : 2;
-      if (this.input.charCodeAt(this.pos + size) === 61) { return this.finishOp(types.assign, size + 1) }
-      return this.finishOp(types.bitShift, size)
+      if (this.input.charCodeAt(this.pos + size) === 61) { return this.finishOp(types$1.assign, size + 1) }
+      return this.finishOp(types$1.bitShift, size)
     }
     if (next === 33 && code === 60 && !this.inModule && this.input.charCodeAt(this.pos + 2) === 45 &&
         this.input.charCodeAt(this.pos + 3) === 45) {
@@ -4956,53 +4974,53 @@
       return this.nextToken()
     }
     if (next === 61) { size = 2; }
-    return this.finishOp(types.relational, size)
+    return this.finishOp(types$1.relational, size)
   };
 
-  pp$9.readToken_eq_excl = function(code) { // '=!'
+  pp.readToken_eq_excl = function(code) { // '=!'
     var next = this.input.charCodeAt(this.pos + 1);
-    if (next === 61) { return this.finishOp(types.equality, this.input.charCodeAt(this.pos + 2) === 61 ? 3 : 2) }
+    if (next === 61) { return this.finishOp(types$1.equality, this.input.charCodeAt(this.pos + 2) === 61 ? 3 : 2) }
     if (code === 61 && next === 62 && this.options.ecmaVersion >= 6) { // '=>'
       this.pos += 2;
-      return this.finishToken(types.arrow)
+      return this.finishToken(types$1.arrow)
     }
-    return this.finishOp(code === 61 ? types.eq : types.prefix, 1)
+    return this.finishOp(code === 61 ? types$1.eq : types$1.prefix, 1)
   };
 
-  pp$9.readToken_question = function() { // '?'
+  pp.readToken_question = function() { // '?'
     var ecmaVersion = this.options.ecmaVersion;
     if (ecmaVersion >= 11) {
       var next = this.input.charCodeAt(this.pos + 1);
       if (next === 46) {
         var next2 = this.input.charCodeAt(this.pos + 2);
-        if (next2 < 48 || next2 > 57) { return this.finishOp(types.questionDot, 2) }
+        if (next2 < 48 || next2 > 57) { return this.finishOp(types$1.questionDot, 2) }
       }
       if (next === 63) {
         if (ecmaVersion >= 12) {
           var next2$1 = this.input.charCodeAt(this.pos + 2);
-          if (next2$1 === 61) { return this.finishOp(types.assign, 3) }
+          if (next2$1 === 61) { return this.finishOp(types$1.assign, 3) }
         }
-        return this.finishOp(types.coalesce, 2)
+        return this.finishOp(types$1.coalesce, 2)
       }
     }
-    return this.finishOp(types.question, 1)
+    return this.finishOp(types$1.question, 1)
   };
 
-  pp$9.readToken_numberSign = function() { // '#'
+  pp.readToken_numberSign = function() { // '#'
     var ecmaVersion = this.options.ecmaVersion;
     var code = 35; // '#'
     if (ecmaVersion >= 13) {
       ++this.pos;
       code = this.fullCharCodeAtPos();
       if (isIdentifierStart(code, true) || code === 92 /* '\' */) {
-        return this.finishToken(types.privateId, this.readWord1())
+        return this.finishToken(types$1.privateId, this.readWord1())
       }
     }
 
-    this.raise(this.pos, "Unexpected character '" + codePointToString$1(code) + "'");
+    this.raise(this.pos, "Unexpected character '" + codePointToString(code) + "'");
   };
 
-  pp$9.getTokenFromCode = function(code) {
+  pp.getTokenFromCode = function(code) {
     switch (code) {
     // The interpretation of a dot depends on whether it is followed
     // by a digit or another two dots.
@@ -5010,20 +5028,20 @@
       return this.readToken_dot()
 
     // Punctuation tokens.
-    case 40: ++this.pos; return this.finishToken(types.parenL)
-    case 41: ++this.pos; return this.finishToken(types.parenR)
-    case 59: ++this.pos; return this.finishToken(types.semi)
-    case 44: ++this.pos; return this.finishToken(types.comma)
-    case 91: ++this.pos; return this.finishToken(types.bracketL)
-    case 93: ++this.pos; return this.finishToken(types.bracketR)
-    case 123: ++this.pos; return this.finishToken(types.braceL)
-    case 125: ++this.pos; return this.finishToken(types.braceR)
-    case 58: ++this.pos; return this.finishToken(types.colon)
+    case 40: ++this.pos; return this.finishToken(types$1.parenL)
+    case 41: ++this.pos; return this.finishToken(types$1.parenR)
+    case 59: ++this.pos; return this.finishToken(types$1.semi)
+    case 44: ++this.pos; return this.finishToken(types$1.comma)
+    case 91: ++this.pos; return this.finishToken(types$1.bracketL)
+    case 93: ++this.pos; return this.finishToken(types$1.bracketR)
+    case 123: ++this.pos; return this.finishToken(types$1.braceL)
+    case 125: ++this.pos; return this.finishToken(types$1.braceR)
+    case 58: ++this.pos; return this.finishToken(types$1.colon)
 
     case 96: // '`'
       if (this.options.ecmaVersion < 6) { break }
       ++this.pos;
-      return this.finishToken(types.backQuote)
+      return this.finishToken(types$1.backQuote)
 
     case 48: // '0'
       var next = this.input.charCodeAt(this.pos + 1);
@@ -5046,7 +5064,6 @@
     // often referred to. `finishOp` simply skips the amount of
     // characters it is given as second argument, and returns a token
     // of the type given by its first argument.
-
     case 47: // '/'
       return this.readToken_slash()
 
@@ -5072,22 +5089,22 @@
       return this.readToken_question()
 
     case 126: // '~'
-      return this.finishOp(types.prefix, 1)
+      return this.finishOp(types$1.prefix, 1)
 
     case 35: // '#'
       return this.readToken_numberSign()
     }
 
-    this.raise(this.pos, "Unexpected character '" + codePointToString$1(code) + "'");
+    this.raise(this.pos, "Unexpected character '" + codePointToString(code) + "'");
   };
 
-  pp$9.finishOp = function(type, size) {
+  pp.finishOp = function(type, size) {
     var str = this.input.slice(this.pos, this.pos + size);
     this.pos += size;
     return this.finishToken(type, str)
   };
 
-  pp$9.readRegexp = function() {
+  pp.readRegexp = function() {
     var escaped, inClass, start = this.pos;
     for (;;) {
       if (this.pos >= this.input.length) { this.raise(start, "Unterminated regular expression"); }
@@ -5122,14 +5139,14 @@
       // https://github.com/estree/estree/blob/a27003adf4fd7bfad44de9cef372a2eacd527b1c/es5.md#regexpliteral
     }
 
-    return this.finishToken(types.regexp, {pattern: pattern, flags: flags, value: value})
+    return this.finishToken(types$1.regexp, {pattern: pattern, flags: flags, value: value})
   };
 
   // Read an integer in the given radix. Return null if zero digits
   // were read, the integer value otherwise. When `len` is given, this
   // will return `null` unless the integer has exactly `len` digits.
 
-  pp$9.readInt = function(radix, len, maybeLegacyOctalNumericLiteral) {
+  pp.readInt = function(radix, len, maybeLegacyOctalNumericLiteral) {
     // `len` is used for character escape sequences. In that case, disallow separators.
     var allowSeparators = this.options.ecmaVersion >= 12 && len === undefined;
 
@@ -5183,7 +5200,7 @@
     return BigInt(str.replace(/_/g, ""))
   }
 
-  pp$9.readRadixNumber = function(radix) {
+  pp.readRadixNumber = function(radix) {
     var start = this.pos;
     this.pos += 2; // 0x
     var val = this.readInt(radix);
@@ -5192,12 +5209,12 @@
       val = stringToBigInt(this.input.slice(start, this.pos));
       ++this.pos;
     } else if (isIdentifierStart(this.fullCharCodeAtPos())) { this.raise(this.pos, "Identifier directly after number"); }
-    return this.finishToken(types.num, val)
+    return this.finishToken(types$1.num, val)
   };
 
   // Read an integer, octal integer, or floating-point number.
 
-  pp$9.readNumber = function(startsWithDot) {
+  pp.readNumber = function(startsWithDot) {
     var start = this.pos;
     if (!startsWithDot && this.readInt(10, undefined, true) === null) { this.raise(start, "Invalid number"); }
     var octal = this.pos - start >= 2 && this.input.charCodeAt(start) === 48;
@@ -5207,7 +5224,7 @@
       var val$1 = stringToBigInt(this.input.slice(start, this.pos));
       ++this.pos;
       if (isIdentifierStart(this.fullCharCodeAtPos())) { this.raise(this.pos, "Identifier directly after number"); }
-      return this.finishToken(types.num, val$1)
+      return this.finishToken(types$1.num, val$1)
     }
     if (octal && /[89]/.test(this.input.slice(start, this.pos))) { octal = false; }
     if (next === 46 && !octal) { // '.'
@@ -5223,12 +5240,12 @@
     if (isIdentifierStart(this.fullCharCodeAtPos())) { this.raise(this.pos, "Identifier directly after number"); }
 
     var val = stringToNumber(this.input.slice(start, this.pos), octal);
-    return this.finishToken(types.num, val)
+    return this.finishToken(types$1.num, val)
   };
 
   // Read a string value, interpreting backslash-escapes.
 
-  pp$9.readCodePoint = function() {
+  pp.readCodePoint = function() {
     var ch = this.input.charCodeAt(this.pos), code;
 
     if (ch === 123) { // '{'
@@ -5243,14 +5260,14 @@
     return code
   };
 
-  function codePointToString$1(code) {
+  function codePointToString(code) {
     // UTF-16 Decoding
     if (code <= 0xFFFF) { return String.fromCharCode(code) }
     code -= 0x10000;
     return String.fromCharCode((code >> 10) + 0xD800, (code & 1023) + 0xDC00)
   }
 
-  pp$9.readString = function(quote) {
+  pp.readString = function(quote) {
     var out = "", chunkStart = ++this.pos;
     for (;;) {
       if (this.pos >= this.input.length) { this.raise(this.start, "Unterminated string constant"); }
@@ -5273,14 +5290,14 @@
       }
     }
     out += this.input.slice(chunkStart, this.pos++);
-    return this.finishToken(types.string, out)
+    return this.finishToken(types$1.string, out)
   };
 
   // Reads template string tokens.
 
   var INVALID_TEMPLATE_ESCAPE_ERROR = {};
 
-  pp$9.tryReadTemplateToken = function() {
+  pp.tryReadTemplateToken = function() {
     this.inTemplateElement = true;
     try {
       this.readTmplToken();
@@ -5295,7 +5312,7 @@
     this.inTemplateElement = false;
   };
 
-  pp$9.invalidStringToken = function(position, message) {
+  pp.invalidStringToken = function(position, message) {
     if (this.inTemplateElement && this.options.ecmaVersion >= 9) {
       throw INVALID_TEMPLATE_ESCAPE_ERROR
     } else {
@@ -5303,23 +5320,23 @@
     }
   };
 
-  pp$9.readTmplToken = function() {
+  pp.readTmplToken = function() {
     var out = "", chunkStart = this.pos;
     for (;;) {
       if (this.pos >= this.input.length) { this.raise(this.start, "Unterminated template"); }
       var ch = this.input.charCodeAt(this.pos);
       if (ch === 96 || ch === 36 && this.input.charCodeAt(this.pos + 1) === 123) { // '`', '${'
-        if (this.pos === this.start && (this.type === types.template || this.type === types.invalidTemplate)) {
+        if (this.pos === this.start && (this.type === types$1.template || this.type === types$1.invalidTemplate)) {
           if (ch === 36) {
             this.pos += 2;
-            return this.finishToken(types.dollarBraceL)
+            return this.finishToken(types$1.dollarBraceL)
           } else {
             ++this.pos;
-            return this.finishToken(types.backQuote)
+            return this.finishToken(types$1.backQuote)
           }
         }
         out += this.input.slice(chunkStart, this.pos);
-        return this.finishToken(types.template, out)
+        return this.finishToken(types$1.template, out)
       }
       if (ch === 92) { // '\'
         out += this.input.slice(chunkStart, this.pos);
@@ -5350,7 +5367,7 @@
   };
 
   // Reads a template token to search for the end, without validating any escape sequences
-  pp$9.readInvalidTemplateToken = function() {
+  pp.readInvalidTemplateToken = function() {
     for (; this.pos < this.input.length; this.pos++) {
       switch (this.input[this.pos]) {
       case "\\":
@@ -5361,10 +5378,10 @@
         if (this.input[this.pos + 1] !== "{") {
           break
         }
-      // falls through
 
+      // falls through
       case "`":
-        return this.finishToken(types.invalidTemplate, this.input.slice(this.start, this.pos))
+        return this.finishToken(types$1.invalidTemplate, this.input.slice(this.start, this.pos))
 
       // no default
       }
@@ -5374,14 +5391,14 @@
 
   // Used to read escaped characters
 
-  pp$9.readEscapedChar = function(inTemplate) {
+  pp.readEscapedChar = function(inTemplate) {
     var ch = this.input.charCodeAt(++this.pos);
     ++this.pos;
     switch (ch) {
     case 110: return "\n" // 'n' -> '\n'
     case 114: return "\r" // 'r' -> '\r'
     case 120: return String.fromCharCode(this.readHexChar(2)) // 'x'
-    case 117: return codePointToString$1(this.readCodePoint()) // 'u'
+    case 117: return codePointToString(this.readCodePoint()) // 'u'
     case 116: return "\t" // 't' -> '\t'
     case 98: return "\b" // 'b' -> '\b'
     case 118: return "\u000b" // 'v' -> '\u000b'
@@ -5439,7 +5456,7 @@
 
   // Used to read character escape sequences ('\x', '\u', '\U').
 
-  pp$9.readHexChar = function(len) {
+  pp.readHexChar = function(len) {
     var codePos = this.pos;
     var n = this.readInt(16, len);
     if (n === null) { this.invalidStringToken(codePos, "Bad character escape sequence"); }
@@ -5452,7 +5469,7 @@
   // Incrementally adds only escaped chars, adding other chunks as-is
   // as a micro-optimization.
 
-  pp$9.readWord1 = function() {
+  pp.readWord1 = function() {
     this.containsEsc = false;
     var word = "", first = true, chunkStart = this.pos;
     var astral = this.options.ecmaVersion >= 6;
@@ -5470,7 +5487,7 @@
         var esc = this.readCodePoint();
         if (!(first ? isIdentifierStart : isIdentifierChar)(esc, astral))
           { this.invalidStringToken(escStart, "Invalid Unicode escape"); }
-        word += codePointToString$1(esc);
+        word += codePointToString(esc);
         chunkStart = this.pos;
       } else {
         break
@@ -5483,18 +5500,18 @@
   // Read an identifier or keyword token. Will check for reserved
   // words when necessary.
 
-  pp$9.readWord = function() {
+  pp.readWord = function() {
     var word = this.readWord1();
-    var type = types.name;
+    var type = types$1.name;
     if (this.keywords.test(word)) {
-      type = keywords$1[word];
+      type = keywords[word];
     }
     return this.finishToken(type, word)
   };
 
   // Acorn is a tiny, fast JavaScript parser written in JavaScript.
 
-  var version = "8.5.0";
+  var version = "8.6.0";
 
   Parser.acorn = {
     Parser: Parser,
@@ -5505,10 +5522,10 @@
     getLineInfo: getLineInfo,
     Node: Node,
     TokenType: TokenType,
-    tokTypes: types,
-    keywordTypes: keywords$1,
+    tokTypes: types$1,
+    keywordTypes: keywords,
     TokContext: TokContext,
-    tokContexts: types$1,
+    tokContexts: types,
     isIdentifierChar: isIdentifierChar,
     isIdentifierStart: isIdentifierStart,
     Token: Token,
@@ -5556,17 +5573,17 @@
   exports.isIdentifierChar = isIdentifierChar;
   exports.isIdentifierStart = isIdentifierStart;
   exports.isNewLine = isNewLine;
-  exports.keywordTypes = keywords$1;
+  exports.keywordTypes = keywords;
   exports.lineBreak = lineBreak;
   exports.lineBreakG = lineBreakG;
   exports.nonASCIIwhitespace = nonASCIIwhitespace;
   exports.parse = parse;
   exports.parseExpressionAt = parseExpressionAt;
-  exports.tokContexts = types$1;
-  exports.tokTypes = types;
+  exports.tokContexts = types;
+  exports.tokTypes = types$1;
   exports.tokenizer = tokenizer;
   exports.version = version;
 
   Object.defineProperty(exports, '__esModule', { value: true });
 
-})));
+}));
diff --git a/deps/acorn/acorn/dist/acorn.mjs b/deps/acorn/acorn/dist/acorn.mjs
index 96a8294589badc..df5b26e5dd0f74 100644
--- a/deps/acorn/acorn/dist/acorn.mjs
+++ b/deps/acorn/acorn/dist/acorn.mjs
@@ -12,7 +12,7 @@ var reservedWords = {
 
 var ecma5AndLessKeywords = "break case catch continue debugger default do else finally for function if return switch throw try var while with null true false instanceof typeof void delete new in this";
 
-var keywords = {
+var keywords$1 = {
   5: ecma5AndLessKeywords,
   "5module": ecma5AndLessKeywords + " export import",
   6: ecma5AndLessKeywords + " const class extends export import super"
@@ -131,17 +131,17 @@ var beforeExpr = {beforeExpr: true}, startsExpr = {startsExpr: true};
 
 // Map keyword names to token types.
 
-var keywords$1 = {};
+var keywords = {};
 
 // Succinct definitions of keyword token types
 function kw(name, options) {
   if ( options === void 0 ) options = {};
 
   options.keyword = name;
-  return keywords$1[name] = new TokenType(name, options)
+  return keywords[name] = new TokenType(name, options)
 }
 
-var types = {
+var types$1 = {
   num: new TokenType("num", startsExpr),
   regexp: new TokenType("regexp", startsExpr),
   string: new TokenType("string", startsExpr),
@@ -483,7 +483,7 @@ var
 var Parser = function Parser(options, input, startPos) {
   this.options = options = getOptions(options);
   this.sourceFile = options.sourceFile;
-  this.keywords = wordsRegexp(keywords[options.ecmaVersion >= 6 ? 6 : options.sourceType === "module" ? "5module" : 5]);
+  this.keywords = wordsRegexp(keywords$1[options.ecmaVersion >= 6 ? 6 : options.sourceType === "module" ? "5module" : 5]);
   var reserved = "";
   if (options.allowReserved !== true) {
     reserved = reservedWords[options.ecmaVersion >= 6 ? 6 : options.ecmaVersion === 5 ? 5 : 3];
@@ -514,7 +514,7 @@ var Parser = function Parser(options, input, startPos) {
 
   // Properties of the current token:
   // Its type
-  this.type = types.eof;
+  this.type = types$1.eof;
   // For tokens that include more information than their type, the value
   this.value = null;
   // Its start and end offset
@@ -574,8 +574,11 @@ Parser.prototype.parse = function parse () {
 };
 
 prototypeAccessors.inFunction.get = function () { return (this.currentVarScope().flags & SCOPE_FUNCTION) > 0 };
+
 prototypeAccessors.inGenerator.get = function () { return (this.currentVarScope().flags & SCOPE_GENERATOR) > 0 && !this.currentVarScope().inClassFieldInit };
+
 prototypeAccessors.inAsync.get = function () { return (this.currentVarScope().flags & SCOPE_ASYNC) > 0 && !this.currentVarScope().inClassFieldInit };
+
 prototypeAccessors.canAwait.get = function () {
   for (var i = this.scopeStack.length - 1; i >= 0; i--) {
     var scope = this.scopeStack[i];
@@ -584,20 +587,25 @@ prototypeAccessors.canAwait.get = function () {
   }
   return (this.inModule && this.options.ecmaVersion >= 13) || this.options.allowAwaitOutsideFunction
 };
+
 prototypeAccessors.allowSuper.get = function () {
   var ref = this.currentThisScope();
     var flags = ref.flags;
     var inClassFieldInit = ref.inClassFieldInit;
   return (flags & SCOPE_SUPER) > 0 || inClassFieldInit || this.options.allowSuperOutsideMethod
 };
+
 prototypeAccessors.allowDirectSuper.get = function () { return (this.currentThisScope().flags & SCOPE_DIRECT_SUPER) > 0 };
+
 prototypeAccessors.treatFunctionsAsVar.get = function () { return this.treatFunctionsAsVarInScope(this.currentScope()) };
+
 prototypeAccessors.allowNewDotTarget.get = function () {
   var ref = this.currentThisScope();
     var flags = ref.flags;
     var inClassFieldInit = ref.inClassFieldInit;
   return (flags & (SCOPE_FUNCTION | SCOPE_CLASS_STATIC_BLOCK)) > 0 || inClassFieldInit
 };
+
 prototypeAccessors.inClassStaticBlock.get = function () {
   return (this.currentVarScope().flags & SCOPE_CLASS_STATIC_BLOCK) > 0
 };
@@ -627,12 +635,12 @@ Parser.tokenizer = function tokenizer (input, options) {
 
 Object.defineProperties( Parser.prototype, prototypeAccessors );
 
-var pp = Parser.prototype;
+var pp$9 = Parser.prototype;
 
 // ## Parser utilities
 
 var literal = /^(?:'((?:\\.|[^'\\])*?)'|"((?:\\.|[^"\\])*?)")/;
-pp.strictDirective = function(start) {
+pp$9.strictDirective = function(start) {
   for (;;) {
     // Try to find string literal.
     skipWhiteSpace.lastIndex = start;
@@ -660,7 +668,7 @@ pp.strictDirective = function(start) {
 // Predicate that tests whether the next token is of the given
 // type, and if yes, consumes it as a side effect.
 
-pp.eat = function(type) {
+pp$9.eat = function(type) {
   if (this.type === type) {
     this.next();
     return true
@@ -671,13 +679,13 @@ pp.eat = function(type) {
 
 // Tests whether parsed token is a contextual keyword.
 
-pp.isContextual = function(name) {
-  return this.type === types.name && this.value === name && !this.containsEsc
+pp$9.isContextual = function(name) {
+  return this.type === types$1.name && this.value === name && !this.containsEsc
 };
 
 // Consumes contextual keyword if possible.
 
-pp.eatContextual = function(name) {
+pp$9.eatContextual = function(name) {
   if (!this.isContextual(name)) { return false }
   this.next();
   return true
@@ -685,19 +693,19 @@ pp.eatContextual = function(name) {
 
 // Asserts that following token is given contextual keyword.
 
-pp.expectContextual = function(name) {
+pp$9.expectContextual = function(name) {
   if (!this.eatContextual(name)) { this.unexpected(); }
 };
 
 // Test whether a semicolon can be inserted at the current position.
 
-pp.canInsertSemicolon = function() {
-  return this.type === types.eof ||
-    this.type === types.braceR ||
+pp$9.canInsertSemicolon = function() {
+  return this.type === types$1.eof ||
+    this.type === types$1.braceR ||
     lineBreak.test(this.input.slice(this.lastTokEnd, this.start))
 };
 
-pp.insertSemicolon = function() {
+pp$9.insertSemicolon = function() {
   if (this.canInsertSemicolon()) {
     if (this.options.onInsertedSemicolon)
       { this.options.onInsertedSemicolon(this.lastTokEnd, this.lastTokEndLoc); }
@@ -708,11 +716,11 @@ pp.insertSemicolon = function() {
 // Consume a semicolon, or, failing that, see if we are allowed to
 // pretend that there is a semicolon at this position.
 
-pp.semicolon = function() {
-  if (!this.eat(types.semi) && !this.insertSemicolon()) { this.unexpected(); }
+pp$9.semicolon = function() {
+  if (!this.eat(types$1.semi) && !this.insertSemicolon()) { this.unexpected(); }
 };
 
-pp.afterTrailingComma = function(tokType, notNext) {
+pp$9.afterTrailingComma = function(tokType, notNext) {
   if (this.type === tokType) {
     if (this.options.onTrailingComma)
       { this.options.onTrailingComma(this.lastTokStart, this.lastTokStartLoc); }
@@ -725,13 +733,13 @@ pp.afterTrailingComma = function(tokType, notNext) {
 // Expect a token of a given type. If found, consume it, otherwise,
 // raise an unexpected token error.
 
-pp.expect = function(type) {
+pp$9.expect = function(type) {
   this.eat(type) || this.unexpected();
 };
 
 // Raise an unexpected token error.
 
-pp.unexpected = function(pos) {
+pp$9.unexpected = function(pos) {
   this.raise(pos != null ? pos : this.start, "Unexpected token");
 };
 
@@ -744,7 +752,7 @@ function DestructuringErrors() {
     -1;
 }
 
-pp.checkPatternErrors = function(refDestructuringErrors, isAssign) {
+pp$9.checkPatternErrors = function(refDestructuringErrors, isAssign) {
   if (!refDestructuringErrors) { return }
   if (refDestructuringErrors.trailingComma > -1)
     { this.raiseRecoverable(refDestructuringErrors.trailingComma, "Comma is not permitted after the rest element"); }
@@ -752,7 +760,7 @@ pp.checkPatternErrors = function(refDestructuringErrors, isAssign) {
   if (parens > -1) { this.raiseRecoverable(parens, "Parenthesized pattern"); }
 };
 
-pp.checkExpressionErrors = function(refDestructuringErrors, andThrow) {
+pp$9.checkExpressionErrors = function(refDestructuringErrors, andThrow) {
   if (!refDestructuringErrors) { return false }
   var shorthandAssign = refDestructuringErrors.shorthandAssign;
   var doubleProto = refDestructuringErrors.doubleProto;
@@ -763,20 +771,20 @@ pp.checkExpressionErrors = function(refDestructuringErrors, andThrow) {
     { this.raiseRecoverable(doubleProto, "Redefinition of __proto__ property"); }
 };
 
-pp.checkYieldAwaitInDefaultParams = function() {
+pp$9.checkYieldAwaitInDefaultParams = function() {
   if (this.yieldPos && (!this.awaitPos || this.yieldPos < this.awaitPos))
     { this.raise(this.yieldPos, "Yield expression cannot be a default value"); }
   if (this.awaitPos)
     { this.raise(this.awaitPos, "Await expression cannot be a default value"); }
 };
 
-pp.isSimpleAssignTarget = function(expr) {
+pp$9.isSimpleAssignTarget = function(expr) {
   if (expr.type === "ParenthesizedExpression")
     { return this.isSimpleAssignTarget(expr.expression) }
   return expr.type === "Identifier" || expr.type === "MemberExpression"
 };
 
-var pp$1 = Parser.prototype;
+var pp$8 = Parser.prototype;
 
 // ### Statement parsing
 
@@ -785,10 +793,10 @@ var pp$1 = Parser.prototype;
 // `program` argument.  If present, the statements will be appended
 // to its body instead of creating a new node.
 
-pp$1.parseTopLevel = function(node) {
+pp$8.parseTopLevel = function(node) {
   var exports = Object.create(null);
   if (!node.body) { node.body = []; }
-  while (this.type !== types.eof) {
+  while (this.type !== types$1.eof) {
     var stmt = this.parseStatement(null, true, exports);
     node.body.push(stmt);
   }
@@ -807,7 +815,7 @@ pp$1.parseTopLevel = function(node) {
 
 var loopLabel = {kind: "loop"}, switchLabel = {kind: "switch"};
 
-pp$1.isLet = function(context) {
+pp$8.isLet = function(context) {
   if (this.options.ecmaVersion < 6 || !this.isContextual("let")) { return false }
   skipWhiteSpace.lastIndex = this.pos;
   var skip = skipWhiteSpace.exec(this.input);
@@ -833,7 +841,7 @@ pp$1.isLet = function(context) {
 // check 'async [no LineTerminator here] function'
 // - 'async /*foo*/ function' is OK.
 // - 'async /*\n*/ function' is invalid.
-pp$1.isAsyncFunction = function() {
+pp$8.isAsyncFunction = function() {
   if (this.options.ecmaVersion < 8 || !this.isContextual("async"))
     { return false }
 
@@ -853,11 +861,11 @@ pp$1.isAsyncFunction = function() {
 // `if (foo) /blah/.exec(foo)`, where looking at the previous token
 // does not help.
 
-pp$1.parseStatement = function(context, topLevel, exports) {
+pp$8.parseStatement = function(context, topLevel, exports) {
   var starttype = this.type, node = this.startNode(), kind;
 
   if (this.isLet(context)) {
-    starttype = types._var;
+    starttype = types$1._var;
     kind = "let";
   }
 
@@ -866,35 +874,35 @@ pp$1.parseStatement = function(context, topLevel, exports) {
   // complexity.
 
   switch (starttype) {
-  case types._break: case types._continue: return this.parseBreakContinueStatement(node, starttype.keyword)
-  case types._debugger: return this.parseDebuggerStatement(node)
-  case types._do: return this.parseDoStatement(node)
-  case types._for: return this.parseForStatement(node)
-  case types._function:
+  case types$1._break: case types$1._continue: return this.parseBreakContinueStatement(node, starttype.keyword)
+  case types$1._debugger: return this.parseDebuggerStatement(node)
+  case types$1._do: return this.parseDoStatement(node)
+  case types$1._for: return this.parseForStatement(node)
+  case types$1._function:
     // Function as sole body of either an if statement or a labeled statement
     // works, but not when it is part of a labeled statement that is the sole
     // body of an if statement.
     if ((context && (this.strict || context !== "if" && context !== "label")) && this.options.ecmaVersion >= 6) { this.unexpected(); }
     return this.parseFunctionStatement(node, false, !context)
-  case types._class:
+  case types$1._class:
     if (context) { this.unexpected(); }
     return this.parseClass(node, true)
-  case types._if: return this.parseIfStatement(node)
-  case types._return: return this.parseReturnStatement(node)
-  case types._switch: return this.parseSwitchStatement(node)
-  case types._throw: return this.parseThrowStatement(node)
-  case types._try: return this.parseTryStatement(node)
-  case types._const: case types._var:
+  case types$1._if: return this.parseIfStatement(node)
+  case types$1._return: return this.parseReturnStatement(node)
+  case types$1._switch: return this.parseSwitchStatement(node)
+  case types$1._throw: return this.parseThrowStatement(node)
+  case types$1._try: return this.parseTryStatement(node)
+  case types$1._const: case types$1._var:
     kind = kind || this.value;
     if (context && kind !== "var") { this.unexpected(); }
     return this.parseVarStatement(node, kind)
-  case types._while: return this.parseWhileStatement(node)
-  case types._with: return this.parseWithStatement(node)
-  case types.braceL: return this.parseBlock(true, node)
-  case types.semi: return this.parseEmptyStatement(node)
-  case types._export:
-  case types._import:
-    if (this.options.ecmaVersion > 10 && starttype === types._import) {
+  case types$1._while: return this.parseWhileStatement(node)
+  case types$1._with: return this.parseWithStatement(node)
+  case types$1.braceL: return this.parseBlock(true, node)
+  case types$1.semi: return this.parseEmptyStatement(node)
+  case types$1._export:
+  case types$1._import:
+    if (this.options.ecmaVersion > 10 && starttype === types$1._import) {
       skipWhiteSpace.lastIndex = this.pos;
       var skip = skipWhiteSpace.exec(this.input);
       var next = this.pos + skip[0].length, nextCh = this.input.charCodeAt(next);
@@ -908,7 +916,7 @@ pp$1.parseStatement = function(context, topLevel, exports) {
       if (!this.inModule)
         { this.raise(this.start, "'import' and 'export' may appear only with 'sourceType: module'"); }
     }
-    return starttype === types._import ? this.parseImport(node) : this.parseExport(node, exports)
+    return starttype === types$1._import ? this.parseImport(node) : this.parseExport(node, exports)
 
     // If the statement does not start with a statement keyword or a
     // brace, it's an ExpressionStatement or LabeledStatement. We
@@ -923,17 +931,17 @@ pp$1.parseStatement = function(context, topLevel, exports) {
     }
 
     var maybeName = this.value, expr = this.parseExpression();
-    if (starttype === types.name && expr.type === "Identifier" && this.eat(types.colon))
+    if (starttype === types$1.name && expr.type === "Identifier" && this.eat(types$1.colon))
       { return this.parseLabeledStatement(node, maybeName, expr, context) }
     else { return this.parseExpressionStatement(node, expr) }
   }
 };
 
-pp$1.parseBreakContinueStatement = function(node, keyword) {
+pp$8.parseBreakContinueStatement = function(node, keyword) {
   var isBreak = keyword === "break";
   this.next();
-  if (this.eat(types.semi) || this.insertSemicolon()) { node.label = null; }
-  else if (this.type !== types.name) { this.unexpected(); }
+  if (this.eat(types$1.semi) || this.insertSemicolon()) { node.label = null; }
+  else if (this.type !== types$1.name) { this.unexpected(); }
   else {
     node.label = this.parseIdent();
     this.semicolon();
@@ -953,21 +961,21 @@ pp$1.parseBreakContinueStatement = function(node, keyword) {
   return this.finishNode(node, isBreak ? "BreakStatement" : "ContinueStatement")
 };
 
-pp$1.parseDebuggerStatement = function(node) {
+pp$8.parseDebuggerStatement = function(node) {
   this.next();
   this.semicolon();
   return this.finishNode(node, "DebuggerStatement")
 };
 
-pp$1.parseDoStatement = function(node) {
+pp$8.parseDoStatement = function(node) {
   this.next();
   this.labels.push(loopLabel);
   node.body = this.parseStatement("do");
   this.labels.pop();
-  this.expect(types._while);
+  this.expect(types$1._while);
   node.test = this.parseParenExpression();
   if (this.options.ecmaVersion >= 6)
-    { this.eat(types.semi); }
+    { this.eat(types$1.semi); }
   else
     { this.semicolon(); }
   return this.finishNode(node, "DoWhileStatement")
@@ -981,25 +989,25 @@ pp$1.parseDoStatement = function(node) {
 // part (semicolon immediately after the opening parenthesis), it
 // is a regular `for` loop.
 
-pp$1.parseForStatement = function(node) {
+pp$8.parseForStatement = function(node) {
   this.next();
   var awaitAt = (this.options.ecmaVersion >= 9 && this.canAwait && this.eatContextual("await")) ? this.lastTokStart : -1;
   this.labels.push(loopLabel);
   this.enterScope(0);
-  this.expect(types.parenL);
-  if (this.type === types.semi) {
+  this.expect(types$1.parenL);
+  if (this.type === types$1.semi) {
     if (awaitAt > -1) { this.unexpected(awaitAt); }
     return this.parseFor(node, null)
   }
   var isLet = this.isLet();
-  if (this.type === types._var || this.type === types._const || isLet) {
+  if (this.type === types$1._var || this.type === types$1._const || isLet) {
     var init$1 = this.startNode(), kind = isLet ? "let" : this.value;
     this.next();
     this.parseVar(init$1, true, kind);
     this.finishNode(init$1, "VariableDeclaration");
-    if ((this.type === types._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) && init$1.declarations.length === 1) {
+    if ((this.type === types$1._in || (this.options.ecmaVersion >= 6 && this.isContextual("of"))) && init$1.declarations.length === 1) {
       if (this.options.ecmaVersion >= 9) {
-        if (this.type === types._in) {
+        if (this.type === types$1._in) {
           if (awaitAt > -1) { this.unexpected(awaitAt); }
         } else { node.await = awaitAt > -1; }
       }
@@ -1011,9 +1019,9 @@ pp$1.parseForStatement = function(node) {
   var startsWithLet = this.isContextual("let"), isForOf = false;
   var refDestructuringErrors = new DestructuringErrors;
   var init = this.parseExpression(awaitAt > -1 ? "await" : true, refDestructuringErrors);
-  if (this.type === types._in || (isForOf = this.options.ecmaVersion >= 6 && this.isContextual("of"))) {
+  if (this.type === types$1._in || (isForOf = this.options.ecmaVersion >= 6 && this.isContextual("of"))) {
     if (this.options.ecmaVersion >= 9) {
-      if (this.type === types._in) {
+      if (this.type === types$1._in) {
         if (awaitAt > -1) { this.unexpected(awaitAt); }
       } else { node.await = awaitAt > -1; }
     }
@@ -1028,21 +1036,21 @@ pp$1.parseForStatement = function(node) {
   return this.parseFor(node, init)
 };
 
-pp$1.parseFunctionStatement = function(node, isAsync, declarationPosition) {
+pp$8.parseFunctionStatement = function(node, isAsync, declarationPosition) {
   this.next();
   return this.parseFunction(node, FUNC_STATEMENT | (declarationPosition ? 0 : FUNC_HANGING_STATEMENT), false, isAsync)
 };
 
-pp$1.parseIfStatement = function(node) {
+pp$8.parseIfStatement = function(node) {
   this.next();
   node.test = this.parseParenExpression();
   // allow function declarations in branches, but only in non-strict mode
   node.consequent = this.parseStatement("if");
-  node.alternate = this.eat(types._else) ? this.parseStatement("if") : null;
+  node.alternate = this.eat(types$1._else) ? this.parseStatement("if") : null;
   return this.finishNode(node, "IfStatement")
 };
 
-pp$1.parseReturnStatement = function(node) {
+pp$8.parseReturnStatement = function(node) {
   if (!this.inFunction && !this.options.allowReturnOutsideFunction)
     { this.raise(this.start, "'return' outside of function"); }
   this.next();
@@ -1051,16 +1059,16 @@ pp$1.parseReturnStatement = function(node) {
   // optional arguments, we eagerly look for a semicolon or the
   // possibility to insert one.
 
-  if (this.eat(types.semi) || this.insertSemicolon()) { node.argument = null; }
+  if (this.eat(types$1.semi) || this.insertSemicolon()) { node.argument = null; }
   else { node.argument = this.parseExpression(); this.semicolon(); }
   return this.finishNode(node, "ReturnStatement")
 };
 
-pp$1.parseSwitchStatement = function(node) {
+pp$8.parseSwitchStatement = function(node) {
   this.next();
   node.discriminant = this.parseParenExpression();
   node.cases = [];
-  this.expect(types.braceL);
+  this.expect(types$1.braceL);
   this.labels.push(switchLabel);
   this.enterScope(0);
 
@@ -1069,9 +1077,9 @@ pp$1.parseSwitchStatement = function(node) {
   // adding statements to.
 
   var cur;
-  for (var sawDefault = false; this.type !== types.braceR;) {
-    if (this.type === types._case || this.type === types._default) {
-      var isCase = this.type === types._case;
+  for (var sawDefault = false; this.type !== types$1.braceR;) {
+    if (this.type === types$1._case || this.type === types$1._default) {
+      var isCase = this.type === types$1._case;
       if (cur) { this.finishNode(cur, "SwitchCase"); }
       node.cases.push(cur = this.startNode());
       cur.consequent = [];
@@ -1083,7 +1091,7 @@ pp$1.parseSwitchStatement = function(node) {
         sawDefault = true;
         cur.test = null;
       }
-      this.expect(types.colon);
+      this.expect(types$1.colon);
     } else {
       if (!cur) { this.unexpected(); }
       cur.consequent.push(this.parseStatement(null));
@@ -1096,7 +1104,7 @@ pp$1.parseSwitchStatement = function(node) {
   return this.finishNode(node, "SwitchStatement")
 };
 
-pp$1.parseThrowStatement = function(node) {
+pp$8.parseThrowStatement = function(node) {
   this.next();
   if (lineBreak.test(this.input.slice(this.lastTokEnd, this.start)))
     { this.raise(this.lastTokEnd, "Illegal newline after throw"); }
@@ -1107,21 +1115,21 @@ pp$1.parseThrowStatement = function(node) {
 
 // Reused empty array added for node fields that are always empty.
 
-var empty = [];
+var empty$1 = [];
 
-pp$1.parseTryStatement = function(node) {
+pp$8.parseTryStatement = function(node) {
   this.next();
   node.block = this.parseBlock();
   node.handler = null;
-  if (this.type === types._catch) {
+  if (this.type === types$1._catch) {
     var clause = this.startNode();
     this.next();
-    if (this.eat(types.parenL)) {
+    if (this.eat(types$1.parenL)) {
       clause.param = this.parseBindingAtom();
       var simple = clause.param.type === "Identifier";
       this.enterScope(simple ? SCOPE_SIMPLE_CATCH : 0);
       this.checkLValPattern(clause.param, simple ? BIND_SIMPLE_CATCH : BIND_LEXICAL);
-      this.expect(types.parenR);
+      this.expect(types$1.parenR);
     } else {
       if (this.options.ecmaVersion < 10) { this.unexpected(); }
       clause.param = null;
@@ -1131,20 +1139,20 @@ pp$1.parseTryStatement = function(node) {
     this.exitScope();
     node.handler = this.finishNode(clause, "CatchClause");
   }
-  node.finalizer = this.eat(types._finally) ? this.parseBlock() : null;
+  node.finalizer = this.eat(types$1._finally) ? this.parseBlock() : null;
   if (!node.handler && !node.finalizer)
     { this.raise(node.start, "Missing catch or finally clause"); }
   return this.finishNode(node, "TryStatement")
 };
 
-pp$1.parseVarStatement = function(node, kind) {
+pp$8.parseVarStatement = function(node, kind) {
   this.next();
   this.parseVar(node, false, kind);
   this.semicolon();
   return this.finishNode(node, "VariableDeclaration")
 };
 
-pp$1.parseWhileStatement = function(node) {
+pp$8.parseWhileStatement = function(node) {
   this.next();
   node.test = this.parseParenExpression();
   this.labels.push(loopLabel);
@@ -1153,7 +1161,7 @@ pp$1.parseWhileStatement = function(node) {
   return this.finishNode(node, "WhileStatement")
 };
 
-pp$1.parseWithStatement = function(node) {
+pp$8.parseWithStatement = function(node) {
   if (this.strict) { this.raise(this.start, "'with' in strict mode"); }
   this.next();
   node.object = this.parseParenExpression();
@@ -1161,12 +1169,12 @@ pp$1.parseWithStatement = function(node) {
   return this.finishNode(node, "WithStatement")
 };
 
-pp$1.parseEmptyStatement = function(node) {
+pp$8.parseEmptyStatement = function(node) {
   this.next();
   return this.finishNode(node, "EmptyStatement")
 };
 
-pp$1.parseLabeledStatement = function(node, maybeName, expr, context) {
+pp$8.parseLabeledStatement = function(node, maybeName, expr, context) {
   for (var i$1 = 0, list = this.labels; i$1 < list.length; i$1 += 1)
     {
     var label = list[i$1];
@@ -1174,7 +1182,7 @@ pp$1.parseLabeledStatement = function(node, maybeName, expr, context) {
     if (label.name === maybeName)
       { this.raise(expr.start, "Label '" + maybeName + "' is already declared");
   } }
-  var kind = this.type.isLoop ? "loop" : this.type === types._switch ? "switch" : null;
+  var kind = this.type.isLoop ? "loop" : this.type === types$1._switch ? "switch" : null;
   for (var i = this.labels.length - 1; i >= 0; i--) {
     var label$1 = this.labels[i];
     if (label$1.statementStart === node.start) {
@@ -1190,7 +1198,7 @@ pp$1.parseLabeledStatement = function(node, maybeName, expr, context) {
   return this.finishNode(node, "LabeledStatement")
 };
 
-pp$1.parseExpressionStatement = function(node, expr) {
+pp$8.parseExpressionStatement = function(node, expr) {
   node.expression = expr;
   this.semicolon();
   return this.finishNode(node, "ExpressionStatement")
@@ -1200,14 +1208,14 @@ pp$1.parseExpressionStatement = function(node, expr) {
 // strict"` declarations when `allowStrict` is true (used for
 // function bodies).
 
-pp$1.parseBlock = function(createNewLexicalScope, node, exitStrict) {
+pp$8.parseBlock = function(createNewLexicalScope, node, exitStrict) {
   if ( createNewLexicalScope === void 0 ) createNewLexicalScope = true;
   if ( node === void 0 ) node = this.startNode();
 
   node.body = [];
-  this.expect(types.braceL);
+  this.expect(types$1.braceL);
   if (createNewLexicalScope) { this.enterScope(0); }
-  while (this.type !== types.braceR) {
+  while (this.type !== types$1.braceR) {
     var stmt = this.parseStatement(null);
     node.body.push(stmt);
   }
@@ -1221,13 +1229,13 @@ pp$1.parseBlock = function(createNewLexicalScope, node, exitStrict) {
 // `parseStatement` will already have parsed the init statement or
 // expression.
 
-pp$1.parseFor = function(node, init) {
+pp$8.parseFor = function(node, init) {
   node.init = init;
-  this.expect(types.semi);
-  node.test = this.type === types.semi ? null : this.parseExpression();
-  this.expect(types.semi);
-  node.update = this.type === types.parenR ? null : this.parseExpression();
-  this.expect(types.parenR);
+  this.expect(types$1.semi);
+  node.test = this.type === types$1.semi ? null : this.parseExpression();
+  this.expect(types$1.semi);
+  node.update = this.type === types$1.parenR ? null : this.parseExpression();
+  this.expect(types$1.parenR);
   node.body = this.parseStatement("for");
   this.exitScope();
   this.labels.pop();
@@ -1237,8 +1245,8 @@ pp$1.parseFor = function(node, init) {
 // Parse a `for`/`in` and `for`/`of` loop, which are almost
 // same from parser's perspective.
 
-pp$1.parseForIn = function(node, init) {
-  var isForIn = this.type === types._in;
+pp$8.parseForIn = function(node, init) {
+  var isForIn = this.type === types$1._in;
   this.next();
 
   if (
@@ -1259,7 +1267,7 @@ pp$1.parseForIn = function(node, init) {
   }
   node.left = init;
   node.right = isForIn ? this.parseExpression() : this.parseMaybeAssign();
-  this.expect(types.parenR);
+  this.expect(types$1.parenR);
   node.body = this.parseStatement("for");
   this.exitScope();
   this.labels.pop();
@@ -1268,28 +1276,28 @@ pp$1.parseForIn = function(node, init) {
 
 // Parse a list of variable declarations.
 
-pp$1.parseVar = function(node, isFor, kind) {
+pp$8.parseVar = function(node, isFor, kind) {
   node.declarations = [];
   node.kind = kind;
   for (;;) {
     var decl = this.startNode();
     this.parseVarId(decl, kind);
-    if (this.eat(types.eq)) {
+    if (this.eat(types$1.eq)) {
       decl.init = this.parseMaybeAssign(isFor);
-    } else if (kind === "const" && !(this.type === types._in || (this.options.ecmaVersion >= 6 && this.isContextual("of")))) {
+    } else if (kind === "const" && !(this.type === types$1._in || (this.options.ecmaVersion >= 6 && this.isContextual("of")))) {
       this.unexpected();
-    } else if (decl.id.type !== "Identifier" && !(isFor && (this.type === types._in || this.isContextual("of")))) {
+    } else if (decl.id.type !== "Identifier" && !(isFor && (this.type === types$1._in || this.isContextual("of")))) {
       this.raise(this.lastTokEnd, "Complex binding patterns require an initialization value");
     } else {
       decl.init = null;
     }
     node.declarations.push(this.finishNode(decl, "VariableDeclarator"));
-    if (!this.eat(types.comma)) { break }
+    if (!this.eat(types$1.comma)) { break }
   }
   return node
 };
 
-pp$1.parseVarId = function(decl, kind) {
+pp$8.parseVarId = function(decl, kind) {
   decl.id = this.parseBindingAtom();
   this.checkLValPattern(decl.id, kind === "var" ? BIND_VAR : BIND_LEXICAL, false);
 };
@@ -1300,18 +1308,18 @@ var FUNC_STATEMENT = 1, FUNC_HANGING_STATEMENT = 2, FUNC_NULLABLE_ID = 4;
 // `statement & FUNC_STATEMENT`).
 
 // Remove `allowExpressionBody` for 7.0.0, as it is only called with false
-pp$1.parseFunction = function(node, statement, allowExpressionBody, isAsync, forInit) {
+pp$8.parseFunction = function(node, statement, allowExpressionBody, isAsync, forInit) {
   this.initFunction(node);
   if (this.options.ecmaVersion >= 9 || this.options.ecmaVersion >= 6 && !isAsync) {
-    if (this.type === types.star && (statement & FUNC_HANGING_STATEMENT))
+    if (this.type === types$1.star && (statement & FUNC_HANGING_STATEMENT))
       { this.unexpected(); }
-    node.generator = this.eat(types.star);
+    node.generator = this.eat(types$1.star);
   }
   if (this.options.ecmaVersion >= 8)
     { node.async = !!isAsync; }
 
   if (statement & FUNC_STATEMENT) {
-    node.id = (statement & FUNC_NULLABLE_ID) && this.type !== types.name ? null : this.parseIdent();
+    node.id = (statement & FUNC_NULLABLE_ID) && this.type !== types$1.name ? null : this.parseIdent();
     if (node.id && !(statement & FUNC_HANGING_STATEMENT))
       // If it is a regular function declaration in sloppy mode, then it is
       // subject to Annex B semantics (BIND_FUNCTION). Otherwise, the binding
@@ -1327,7 +1335,7 @@ pp$1.parseFunction = function(node, statement, allowExpressionBody, isAsync, for
   this.enterScope(functionFlags(node.async, node.generator));
 
   if (!(statement & FUNC_STATEMENT))
-    { node.id = this.type === types.name ? this.parseIdent() : null; }
+    { node.id = this.type === types$1.name ? this.parseIdent() : null; }
 
   this.parseFunctionParams(node);
   this.parseFunctionBody(node, allowExpressionBody, false, forInit);
@@ -1338,16 +1346,16 @@ pp$1.parseFunction = function(node, statement, allowExpressionBody, isAsync, for
   return this.finishNode(node, (statement & FUNC_STATEMENT) ? "FunctionDeclaration" : "FunctionExpression")
 };
 
-pp$1.parseFunctionParams = function(node) {
-  this.expect(types.parenL);
-  node.params = this.parseBindingList(types.parenR, false, this.options.ecmaVersion >= 8);
+pp$8.parseFunctionParams = function(node) {
+  this.expect(types$1.parenL);
+  node.params = this.parseBindingList(types$1.parenR, false, this.options.ecmaVersion >= 8);
   this.checkYieldAwaitInDefaultParams();
 };
 
 // Parse a class declaration or literal (depending on the
 // `isStatement` parameter).
 
-pp$1.parseClass = function(node, isStatement) {
+pp$8.parseClass = function(node, isStatement) {
   this.next();
 
   // ecma-262 14.6 Class Definitions
@@ -1361,8 +1369,8 @@ pp$1.parseClass = function(node, isStatement) {
   var classBody = this.startNode();
   var hadConstructor = false;
   classBody.body = [];
-  this.expect(types.braceL);
-  while (this.type !== types.braceR) {
+  this.expect(types$1.braceL);
+  while (this.type !== types$1.braceR) {
     var element = this.parseClassElement(node.superClass !== null);
     if (element) {
       classBody.body.push(element);
@@ -1381,8 +1389,8 @@ pp$1.parseClass = function(node, isStatement) {
   return this.finishNode(node, isStatement ? "ClassDeclaration" : "ClassExpression")
 };
 
-pp$1.parseClassElement = function(constructorAllowsSuper) {
-  if (this.eat(types.semi)) { return null }
+pp$8.parseClassElement = function(constructorAllowsSuper) {
+  if (this.eat(types$1.semi)) { return null }
 
   var ecmaVersion = this.options.ecmaVersion;
   var node = this.startNode();
@@ -1394,11 +1402,11 @@ pp$1.parseClassElement = function(constructorAllowsSuper) {
 
   if (this.eatContextual("static")) {
     // Parse static init block
-    if (ecmaVersion >= 13 && this.eat(types.braceL)) {
+    if (ecmaVersion >= 13 && this.eat(types$1.braceL)) {
       this.parseClassStaticBlock(node);
       return node
     }
-    if (this.isClassElementNameStart() || this.type === types.star) {
+    if (this.isClassElementNameStart() || this.type === types$1.star) {
       isStatic = true;
     } else {
       keyName = "static";
@@ -1406,13 +1414,13 @@ pp$1.parseClassElement = function(constructorAllowsSuper) {
   }
   node.static = isStatic;
   if (!keyName && ecmaVersion >= 8 && this.eatContextual("async")) {
-    if ((this.isClassElementNameStart() || this.type === types.star) && !this.canInsertSemicolon()) {
+    if ((this.isClassElementNameStart() || this.type === types$1.star) && !this.canInsertSemicolon()) {
       isAsync = true;
     } else {
       keyName = "async";
     }
   }
-  if (!keyName && (ecmaVersion >= 9 || !isAsync) && this.eat(types.star)) {
+  if (!keyName && (ecmaVersion >= 9 || !isAsync) && this.eat(types$1.star)) {
     isGenerator = true;
   }
   if (!keyName && !isAsync && !isGenerator) {
@@ -1439,7 +1447,7 @@ pp$1.parseClassElement = function(constructorAllowsSuper) {
   }
 
   // Parse element value
-  if (ecmaVersion < 13 || this.type === types.parenL || kind !== "method" || isGenerator || isAsync) {
+  if (ecmaVersion < 13 || this.type === types$1.parenL || kind !== "method" || isGenerator || isAsync) {
     var isConstructor = !node.static && checkKeyName(node, "constructor");
     var allowsDirectSuper = isConstructor && constructorAllowsSuper;
     // Couldn't move this check into the 'parseClassMethod' method for backward compatibility.
@@ -1453,19 +1461,19 @@ pp$1.parseClassElement = function(constructorAllowsSuper) {
   return node
 };
 
-pp$1.isClassElementNameStart = function() {
+pp$8.isClassElementNameStart = function() {
   return (
-    this.type === types.name ||
-    this.type === types.privateId ||
-    this.type === types.num ||
-    this.type === types.string ||
-    this.type === types.bracketL ||
+    this.type === types$1.name ||
+    this.type === types$1.privateId ||
+    this.type === types$1.num ||
+    this.type === types$1.string ||
+    this.type === types$1.bracketL ||
     this.type.keyword
   )
 };
 
-pp$1.parseClassElementName = function(element) {
-  if (this.type === types.privateId) {
+pp$8.parseClassElementName = function(element) {
+  if (this.type === types$1.privateId) {
     if (this.value === "constructor") {
       this.raise(this.start, "Classes can't have an element named '#constructor'");
     }
@@ -1476,7 +1484,7 @@ pp$1.parseClassElementName = function(element) {
   }
 };
 
-pp$1.parseClassMethod = function(method, isGenerator, isAsync, allowsDirectSuper) {
+pp$8.parseClassMethod = function(method, isGenerator, isAsync, allowsDirectSuper) {
   // Check key and flags
   var key = method.key;
   if (method.kind === "constructor") {
@@ -1500,14 +1508,14 @@ pp$1.parseClassMethod = function(method, isGenerator, isAsync, allowsDirectSuper
   return this.finishNode(method, "MethodDefinition")
 };
 
-pp$1.parseClassField = function(field) {
+pp$8.parseClassField = function(field) {
   if (checkKeyName(field, "constructor")) {
     this.raise(field.key.start, "Classes can't have a field named 'constructor'");
   } else if (field.static && checkKeyName(field, "prototype")) {
     this.raise(field.key.start, "Classes can't have a static field named 'prototype'");
   }
 
-  if (this.eat(types.eq)) {
+  if (this.eat(types$1.eq)) {
     // To raise SyntaxError if 'arguments' exists in the initializer.
     var scope = this.currentThisScope();
     var inClassFieldInit = scope.inClassFieldInit;
@@ -1522,13 +1530,13 @@ pp$1.parseClassField = function(field) {
   return this.finishNode(field, "PropertyDefinition")
 };
 
-pp$1.parseClassStaticBlock = function(node) {
+pp$8.parseClassStaticBlock = function(node) {
   node.body = [];
 
   var oldLabels = this.labels;
   this.labels = [];
   this.enterScope(SCOPE_CLASS_STATIC_BLOCK | SCOPE_SUPER);
-  while (this.type !== types.braceR) {
+  while (this.type !== types$1.braceR) {
     var stmt = this.parseStatement(null);
     node.body.push(stmt);
   }
@@ -1539,8 +1547,8 @@ pp$1.parseClassStaticBlock = function(node) {
   return this.finishNode(node, "StaticBlock")
 };
 
-pp$1.parseClassId = function(node, isStatement) {
-  if (this.type === types.name) {
+pp$8.parseClassId = function(node, isStatement) {
+  if (this.type === types$1.name) {
     node.id = this.parseIdent();
     if (isStatement)
       { this.checkLValSimple(node.id, BIND_LEXICAL, false); }
@@ -1551,17 +1559,17 @@ pp$1.parseClassId = function(node, isStatement) {
   }
 };
 
-pp$1.parseClassSuper = function(node) {
-  node.superClass = this.eat(types._extends) ? this.parseExprSubscripts(false) : null;
+pp$8.parseClassSuper = function(node) {
+  node.superClass = this.eat(types$1._extends) ? this.parseExprSubscripts(false) : null;
 };
 
-pp$1.enterClassBody = function() {
+pp$8.enterClassBody = function() {
   var element = {declared: Object.create(null), used: []};
   this.privateNameStack.push(element);
   return element.declared
 };
 
-pp$1.exitClassBody = function() {
+pp$8.exitClassBody = function() {
   var ref = this.privateNameStack.pop();
   var declared = ref.declared;
   var used = ref.used;
@@ -1616,10 +1624,10 @@ function checkKeyName(node, name) {
 
 // Parses module export declaration.
 
-pp$1.parseExport = function(node, exports) {
+pp$8.parseExport = function(node, exports) {
   this.next();
   // export * from '...'
-  if (this.eat(types.star)) {
+  if (this.eat(types$1.star)) {
     if (this.options.ecmaVersion >= 11) {
       if (this.eatContextual("as")) {
         node.exported = this.parseIdent(true);
@@ -1629,20 +1637,20 @@ pp$1.parseExport = function(node, exports) {
       }
     }
     this.expectContextual("from");
-    if (this.type !== types.string) { this.unexpected(); }
+    if (this.type !== types$1.string) { this.unexpected(); }
     node.source = this.parseExprAtom();
     this.semicolon();
     return this.finishNode(node, "ExportAllDeclaration")
   }
-  if (this.eat(types._default)) { // export default ...
+  if (this.eat(types$1._default)) { // export default ...
     this.checkExport(exports, "default", this.lastTokStart);
     var isAsync;
-    if (this.type === types._function || (isAsync = this.isAsyncFunction())) {
+    if (this.type === types$1._function || (isAsync = this.isAsyncFunction())) {
       var fNode = this.startNode();
       this.next();
       if (isAsync) { this.next(); }
       node.declaration = this.parseFunction(fNode, FUNC_STATEMENT | FUNC_NULLABLE_ID, false, isAsync);
-    } else if (this.type === types._class) {
+    } else if (this.type === types$1._class) {
       var cNode = this.startNode();
       node.declaration = this.parseClass(cNode, "nullableID");
     } else {
@@ -1664,7 +1672,7 @@ pp$1.parseExport = function(node, exports) {
     node.declaration = null;
     node.specifiers = this.parseExportSpecifiers(exports);
     if (this.eatContextual("from")) {
-      if (this.type !== types.string) { this.unexpected(); }
+      if (this.type !== types$1.string) { this.unexpected(); }
       node.source = this.parseExprAtom();
     } else {
       for (var i = 0, list = node.specifiers; i < list.length; i += 1) {
@@ -1683,14 +1691,14 @@ pp$1.parseExport = function(node, exports) {
   return this.finishNode(node, "ExportNamedDeclaration")
 };
 
-pp$1.checkExport = function(exports, name, pos) {
+pp$8.checkExport = function(exports, name, pos) {
   if (!exports) { return }
   if (has(exports, name))
     { this.raiseRecoverable(pos, "Duplicate export '" + name + "'"); }
   exports[name] = true;
 };
 
-pp$1.checkPatternExport = function(exports, pat) {
+pp$8.checkPatternExport = function(exports, pat) {
   var type = pat.type;
   if (type === "Identifier")
     { this.checkExport(exports, pat.name, pat.start); }
@@ -1717,7 +1725,7 @@ pp$1.checkPatternExport = function(exports, pat) {
     { this.checkPatternExport(exports, pat.expression); }
 };
 
-pp$1.checkVariableExport = function(exports, decls) {
+pp$8.checkVariableExport = function(exports, decls) {
   if (!exports) { return }
   for (var i = 0, list = decls; i < list.length; i += 1)
     {
@@ -1727,7 +1735,7 @@ pp$1.checkVariableExport = function(exports, decls) {
   }
 };
 
-pp$1.shouldParseExportStatement = function() {
+pp$8.shouldParseExportStatement = function() {
   return this.type.keyword === "var" ||
     this.type.keyword === "const" ||
     this.type.keyword === "class" ||
@@ -1738,14 +1746,14 @@ pp$1.shouldParseExportStatement = function() {
 
 // Parses a comma-separated list of module exports.
 
-pp$1.parseExportSpecifiers = function(exports) {
+pp$8.parseExportSpecifiers = function(exports) {
   var nodes = [], first = true;
   // export { x, y as z } [from '...']
-  this.expect(types.braceL);
-  while (!this.eat(types.braceR)) {
+  this.expect(types$1.braceL);
+  while (!this.eat(types$1.braceR)) {
     if (!first) {
-      this.expect(types.comma);
-      if (this.afterTrailingComma(types.braceR)) { break }
+      this.expect(types$1.comma);
+      if (this.afterTrailingComma(types$1.braceR)) { break }
     } else { first = false; }
 
     var node = this.startNode();
@@ -1759,16 +1767,16 @@ pp$1.parseExportSpecifiers = function(exports) {
 
 // Parses import declaration.
 
-pp$1.parseImport = function(node) {
+pp$8.parseImport = function(node) {
   this.next();
   // import '...'
-  if (this.type === types.string) {
-    node.specifiers = empty;
+  if (this.type === types$1.string) {
+    node.specifiers = empty$1;
     node.source = this.parseExprAtom();
   } else {
     node.specifiers = this.parseImportSpecifiers();
     this.expectContextual("from");
-    node.source = this.type === types.string ? this.parseExprAtom() : this.unexpected();
+    node.source = this.type === types$1.string ? this.parseExprAtom() : this.unexpected();
   }
   this.semicolon();
   return this.finishNode(node, "ImportDeclaration")
@@ -1776,17 +1784,17 @@ pp$1.parseImport = function(node) {
 
 // Parses a comma-separated list of module imports.
 
-pp$1.parseImportSpecifiers = function() {
+pp$8.parseImportSpecifiers = function() {
   var nodes = [], first = true;
-  if (this.type === types.name) {
+  if (this.type === types$1.name) {
     // import defaultObj, { x, y as z } from '...'
     var node = this.startNode();
     node.local = this.parseIdent();
     this.checkLValSimple(node.local, BIND_LEXICAL);
     nodes.push(this.finishNode(node, "ImportDefaultSpecifier"));
-    if (!this.eat(types.comma)) { return nodes }
+    if (!this.eat(types$1.comma)) { return nodes }
   }
-  if (this.type === types.star) {
+  if (this.type === types$1.star) {
     var node$1 = this.startNode();
     this.next();
     this.expectContextual("as");
@@ -1795,11 +1803,11 @@ pp$1.parseImportSpecifiers = function() {
     nodes.push(this.finishNode(node$1, "ImportNamespaceSpecifier"));
     return nodes
   }
-  this.expect(types.braceL);
-  while (!this.eat(types.braceR)) {
+  this.expect(types$1.braceL);
+  while (!this.eat(types$1.braceR)) {
     if (!first) {
-      this.expect(types.comma);
-      if (this.afterTrailingComma(types.braceR)) { break }
+      this.expect(types$1.comma);
+      if (this.afterTrailingComma(types$1.braceR)) { break }
     } else { first = false; }
 
     var node$2 = this.startNode();
@@ -1817,12 +1825,12 @@ pp$1.parseImportSpecifiers = function() {
 };
 
 // Set `ExpressionStatement#directive` property for directive prologues.
-pp$1.adaptDirectivePrologue = function(statements) {
+pp$8.adaptDirectivePrologue = function(statements) {
   for (var i = 0; i < statements.length && this.isDirectiveCandidate(statements[i]); ++i) {
     statements[i].directive = statements[i].expression.raw.slice(1, -1);
   }
 };
-pp$1.isDirectiveCandidate = function(statement) {
+pp$8.isDirectiveCandidate = function(statement) {
   return (
     statement.type === "ExpressionStatement" &&
     statement.expression.type === "Literal" &&
@@ -1832,12 +1840,12 @@ pp$1.isDirectiveCandidate = function(statement) {
   )
 };
 
-var pp$2 = Parser.prototype;
+var pp$7 = Parser.prototype;
 
 // Convert existing expression atom to assignable pattern
 // if possible.
 
-pp$2.toAssignable = function(node, isBinding, refDestructuringErrors) {
+pp$7.toAssignable = function(node, isBinding, refDestructuringErrors) {
   if (this.options.ecmaVersion >= 6 && node) {
     switch (node.type) {
     case "Identifier":
@@ -1918,7 +1926,7 @@ pp$2.toAssignable = function(node, isBinding, refDestructuringErrors) {
 
 // Convert list of expression atoms to binding list.
 
-pp$2.toAssignableList = function(exprList, isBinding) {
+pp$7.toAssignableList = function(exprList, isBinding) {
   var end = exprList.length;
   for (var i = 0; i < end; i++) {
     var elt = exprList[i];
@@ -1934,19 +1942,19 @@ pp$2.toAssignableList = function(exprList, isBinding) {
 
 // Parses spread element.
 
-pp$2.parseSpread = function(refDestructuringErrors) {
+pp$7.parseSpread = function(refDestructuringErrors) {
   var node = this.startNode();
   this.next();
   node.argument = this.parseMaybeAssign(false, refDestructuringErrors);
   return this.finishNode(node, "SpreadElement")
 };
 
-pp$2.parseRestBinding = function() {
+pp$7.parseRestBinding = function() {
   var node = this.startNode();
   this.next();
 
   // RestElement inside of a function parameter must be an identifier
-  if (this.options.ecmaVersion === 6 && this.type !== types.name)
+  if (this.options.ecmaVersion === 6 && this.type !== types$1.name)
     { this.unexpected(); }
 
   node.argument = this.parseBindingAtom();
@@ -1956,36 +1964,36 @@ pp$2.parseRestBinding = function() {
 
 // Parses lvalue (assignable) atom.
 
-pp$2.parseBindingAtom = function() {
+pp$7.parseBindingAtom = function() {
   if (this.options.ecmaVersion >= 6) {
     switch (this.type) {
-    case types.bracketL:
+    case types$1.bracketL:
       var node = this.startNode();
       this.next();
-      node.elements = this.parseBindingList(types.bracketR, true, true);
+      node.elements = this.parseBindingList(types$1.bracketR, true, true);
       return this.finishNode(node, "ArrayPattern")
 
-    case types.braceL:
+    case types$1.braceL:
       return this.parseObj(true)
     }
   }
   return this.parseIdent()
 };
 
-pp$2.parseBindingList = function(close, allowEmpty, allowTrailingComma) {
+pp$7.parseBindingList = function(close, allowEmpty, allowTrailingComma) {
   var elts = [], first = true;
   while (!this.eat(close)) {
     if (first) { first = false; }
-    else { this.expect(types.comma); }
-    if (allowEmpty && this.type === types.comma) {
+    else { this.expect(types$1.comma); }
+    if (allowEmpty && this.type === types$1.comma) {
       elts.push(null);
     } else if (allowTrailingComma && this.afterTrailingComma(close)) {
       break
-    } else if (this.type === types.ellipsis) {
+    } else if (this.type === types$1.ellipsis) {
       var rest = this.parseRestBinding();
       this.parseBindingListItem(rest);
       elts.push(rest);
-      if (this.type === types.comma) { this.raise(this.start, "Comma is not permitted after the rest element"); }
+      if (this.type === types$1.comma) { this.raise(this.start, "Comma is not permitted after the rest element"); }
       this.expect(close);
       break
     } else {
@@ -1997,15 +2005,15 @@ pp$2.parseBindingList = function(close, allowEmpty, allowTrailingComma) {
   return elts
 };
 
-pp$2.parseBindingListItem = function(param) {
+pp$7.parseBindingListItem = function(param) {
   return param
 };
 
 // Parses assignment pattern around given atom if possible.
 
-pp$2.parseMaybeDefault = function(startPos, startLoc, left) {
+pp$7.parseMaybeDefault = function(startPos, startLoc, left) {
   left = left || this.parseBindingAtom();
-  if (this.options.ecmaVersion < 6 || !this.eat(types.eq)) { return left }
+  if (this.options.ecmaVersion < 6 || !this.eat(types$1.eq)) { return left }
   var node = this.startNodeAt(startPos, startLoc);
   node.left = left;
   node.right = this.parseMaybeAssign();
@@ -2076,7 +2084,7 @@ pp$2.parseMaybeDefault = function(startPos, startLoc, left) {
 // duplicate argument names. checkClashes is ignored if the provided construct
 // is an assignment (i.e., bindingType is BIND_NONE).
 
-pp$2.checkLValSimple = function(expr, bindingType, checkClashes) {
+pp$7.checkLValSimple = function(expr, bindingType, checkClashes) {
   if ( bindingType === void 0 ) bindingType = BIND_NONE;
 
   var isBind = bindingType !== BIND_NONE;
@@ -2114,7 +2122,7 @@ pp$2.checkLValSimple = function(expr, bindingType, checkClashes) {
   }
 };
 
-pp$2.checkLValPattern = function(expr, bindingType, checkClashes) {
+pp$7.checkLValPattern = function(expr, bindingType, checkClashes) {
   if ( bindingType === void 0 ) bindingType = BIND_NONE;
 
   switch (expr.type) {
@@ -2139,7 +2147,7 @@ pp$2.checkLValPattern = function(expr, bindingType, checkClashes) {
   }
 };
 
-pp$2.checkLValInnerPattern = function(expr, bindingType, checkClashes) {
+pp$7.checkLValInnerPattern = function(expr, bindingType, checkClashes) {
   if ( bindingType === void 0 ) bindingType = BIND_NONE;
 
   switch (expr.type) {
@@ -2171,7 +2179,7 @@ var TokContext = function TokContext(token, isExpr, preserveSpace, override, gen
   this.generator = !!generator;
 };
 
-var types$1 = {
+var types = {
   b_stat: new TokContext("{", false),
   b_expr: new TokContext("{", true),
   b_tmpl: new TokContext("${", false),
@@ -2184,38 +2192,38 @@ var types$1 = {
   f_gen: new TokContext("function", false, false, null, true)
 };
 
-var pp$3 = Parser.prototype;
+var pp$6 = Parser.prototype;
 
-pp$3.initialContext = function() {
-  return [types$1.b_stat]
+pp$6.initialContext = function() {
+  return [types.b_stat]
 };
 
-pp$3.curContext = function() {
+pp$6.curContext = function() {
   return this.context[this.context.length - 1]
 };
 
-pp$3.braceIsBlock = function(prevType) {
+pp$6.braceIsBlock = function(prevType) {
   var parent = this.curContext();
-  if (parent === types$1.f_expr || parent === types$1.f_stat)
+  if (parent === types.f_expr || parent === types.f_stat)
     { return true }
-  if (prevType === types.colon && (parent === types$1.b_stat || parent === types$1.b_expr))
+  if (prevType === types$1.colon && (parent === types.b_stat || parent === types.b_expr))
     { return !parent.isExpr }
 
   // The check for `tt.name && exprAllowed` detects whether we are
   // after a `yield` or `of` construct. See the `updateContext` for
   // `tt.name`.
-  if (prevType === types._return || prevType === types.name && this.exprAllowed)
+  if (prevType === types$1._return || prevType === types$1.name && this.exprAllowed)
     { return lineBreak.test(this.input.slice(this.lastTokEnd, this.start)) }
-  if (prevType === types._else || prevType === types.semi || prevType === types.eof || prevType === types.parenR || prevType === types.arrow)
+  if (prevType === types$1._else || prevType === types$1.semi || prevType === types$1.eof || prevType === types$1.parenR || prevType === types$1.arrow)
     { return true }
-  if (prevType === types.braceL)
-    { return parent === types$1.b_stat }
-  if (prevType === types._var || prevType === types._const || prevType === types.name)
+  if (prevType === types$1.braceL)
+    { return parent === types.b_stat }
+  if (prevType === types$1._var || prevType === types$1._const || prevType === types$1.name)
     { return false }
   return !this.exprAllowed
 };
 
-pp$3.inGeneratorContext = function() {
+pp$6.inGeneratorContext = function() {
   for (var i = this.context.length - 1; i >= 1; i--) {
     var context = this.context[i];
     if (context.token === "function")
@@ -2224,9 +2232,9 @@ pp$3.inGeneratorContext = function() {
   return false
 };
 
-pp$3.updateContext = function(prevType) {
+pp$6.updateContext = function(prevType) {
   var update, type = this.type;
-  if (type.keyword && prevType === types.dot)
+  if (type.keyword && prevType === types$1.dot)
     { this.exprAllowed = false; }
   else if (update = type.updateContext)
     { update.call(this, prevType); }
@@ -2235,7 +2243,7 @@ pp$3.updateContext = function(prevType) {
 };
 
 // Used to handle egde case when token context could not be inferred correctly in tokenize phase
-pp$3.overrideContext = function(tokenCtx) {
+pp$6.overrideContext = function(tokenCtx) {
   if (this.curContext() !== tokenCtx) {
     this.context[this.context.length - 1] = tokenCtx;
   }
@@ -2243,71 +2251,71 @@ pp$3.overrideContext = function(tokenCtx) {
 
 // Token-specific context update code
 
-types.parenR.updateContext = types.braceR.updateContext = function() {
+types$1.parenR.updateContext = types$1.braceR.updateContext = function() {
   if (this.context.length === 1) {
     this.exprAllowed = true;
     return
   }
   var out = this.context.pop();
-  if (out === types$1.b_stat && this.curContext().token === "function") {
+  if (out === types.b_stat && this.curContext().token === "function") {
     out = this.context.pop();
   }
   this.exprAllowed = !out.isExpr;
 };
 
-types.braceL.updateContext = function(prevType) {
-  this.context.push(this.braceIsBlock(prevType) ? types$1.b_stat : types$1.b_expr);
+types$1.braceL.updateContext = function(prevType) {
+  this.context.push(this.braceIsBlock(prevType) ? types.b_stat : types.b_expr);
   this.exprAllowed = true;
 };
 
-types.dollarBraceL.updateContext = function() {
-  this.context.push(types$1.b_tmpl);
+types$1.dollarBraceL.updateContext = function() {
+  this.context.push(types.b_tmpl);
   this.exprAllowed = true;
 };
 
-types.parenL.updateContext = function(prevType) {
-  var statementParens = prevType === types._if || prevType === types._for || prevType === types._with || prevType === types._while;
-  this.context.push(statementParens ? types$1.p_stat : types$1.p_expr);
+types$1.parenL.updateContext = function(prevType) {
+  var statementParens = prevType === types$1._if || prevType === types$1._for || prevType === types$1._with || prevType === types$1._while;
+  this.context.push(statementParens ? types.p_stat : types.p_expr);
   this.exprAllowed = true;
 };
 
-types.incDec.updateContext = function() {
+types$1.incDec.updateContext = function() {
   // tokExprAllowed stays unchanged
 };
 
-types._function.updateContext = types._class.updateContext = function(prevType) {
-  if (prevType.beforeExpr && prevType !== types._else &&
-      !(prevType === types.semi && this.curContext() !== types$1.p_stat) &&
-      !(prevType === types._return && lineBreak.test(this.input.slice(this.lastTokEnd, this.start))) &&
-      !((prevType === types.colon || prevType === types.braceL) && this.curContext() === types$1.b_stat))
-    { this.context.push(types$1.f_expr); }
+types$1._function.updateContext = types$1._class.updateContext = function(prevType) {
+  if (prevType.beforeExpr && prevType !== types$1._else &&
+      !(prevType === types$1.semi && this.curContext() !== types.p_stat) &&
+      !(prevType === types$1._return && lineBreak.test(this.input.slice(this.lastTokEnd, this.start))) &&
+      !((prevType === types$1.colon || prevType === types$1.braceL) && this.curContext() === types.b_stat))
+    { this.context.push(types.f_expr); }
   else
-    { this.context.push(types$1.f_stat); }
+    { this.context.push(types.f_stat); }
   this.exprAllowed = false;
 };
 
-types.backQuote.updateContext = function() {
-  if (this.curContext() === types$1.q_tmpl)
+types$1.backQuote.updateContext = function() {
+  if (this.curContext() === types.q_tmpl)
     { this.context.pop(); }
   else
-    { this.context.push(types$1.q_tmpl); }
+    { this.context.push(types.q_tmpl); }
   this.exprAllowed = false;
 };
 
-types.star.updateContext = function(prevType) {
-  if (prevType === types._function) {
+types$1.star.updateContext = function(prevType) {
+  if (prevType === types$1._function) {
     var index = this.context.length - 1;
-    if (this.context[index] === types$1.f_expr)
-      { this.context[index] = types$1.f_expr_gen; }
+    if (this.context[index] === types.f_expr)
+      { this.context[index] = types.f_expr_gen; }
     else
-      { this.context[index] = types$1.f_gen; }
+      { this.context[index] = types.f_gen; }
   }
   this.exprAllowed = true;
 };
 
-types.name.updateContext = function(prevType) {
+types$1.name.updateContext = function(prevType) {
   var allowed = false;
-  if (this.options.ecmaVersion >= 6 && prevType !== types.dot) {
+  if (this.options.ecmaVersion >= 6 && prevType !== types$1.dot) {
     if (this.value === "of" && !this.exprAllowed ||
         this.value === "yield" && this.inGeneratorContext())
       { allowed = true; }
@@ -2317,14 +2325,14 @@ types.name.updateContext = function(prevType) {
 
 // A recursive descent parser operates by defining functions for all
 
-var pp$4 = Parser.prototype;
+var pp$5 = Parser.prototype;
 
 // Check if property name clashes with already added.
 // Object/class getters and setters are not allowed to clash —
 // either with each other or with an init property — and in
 // strict mode, init properties are also not allowed to be repeated.
 
-pp$4.checkPropClash = function(prop, propHash, refDestructuringErrors) {
+pp$5.checkPropClash = function(prop, propHash, refDestructuringErrors) {
   if (this.options.ecmaVersion >= 9 && prop.type === "SpreadElement")
     { return }
   if (this.options.ecmaVersion >= 6 && (prop.computed || prop.method || prop.shorthand))
@@ -2341,10 +2349,12 @@ pp$4.checkPropClash = function(prop, propHash, refDestructuringErrors) {
     if (name === "__proto__" && kind === "init") {
       if (propHash.proto) {
         if (refDestructuringErrors) {
-          if (refDestructuringErrors.doubleProto < 0)
-            { refDestructuringErrors.doubleProto = key.start; }
-          // Backwards-compat kludge. Can be removed in version 6.0
-        } else { this.raiseRecoverable(key.start, "Redefinition of __proto__ property"); }
+          if (refDestructuringErrors.doubleProto < 0) {
+            refDestructuringErrors.doubleProto = key.start;
+          }
+        } else {
+          this.raiseRecoverable(key.start, "Redefinition of __proto__ property");
+        }
       }
       propHash.proto = true;
     }
@@ -2386,13 +2396,13 @@ pp$4.checkPropClash = function(prop, propHash, refDestructuringErrors) {
 // and object pattern might appear (so it's possible to raise
 // delayed syntax error at correct position).
 
-pp$4.parseExpression = function(forInit, refDestructuringErrors) {
+pp$5.parseExpression = function(forInit, refDestructuringErrors) {
   var startPos = this.start, startLoc = this.startLoc;
   var expr = this.parseMaybeAssign(forInit, refDestructuringErrors);
-  if (this.type === types.comma) {
+  if (this.type === types$1.comma) {
     var node = this.startNodeAt(startPos, startLoc);
     node.expressions = [expr];
-    while (this.eat(types.comma)) { node.expressions.push(this.parseMaybeAssign(forInit, refDestructuringErrors)); }
+    while (this.eat(types$1.comma)) { node.expressions.push(this.parseMaybeAssign(forInit, refDestructuringErrors)); }
     return this.finishNode(node, "SequenceExpression")
   }
   return expr
@@ -2401,7 +2411,7 @@ pp$4.parseExpression = function(forInit, refDestructuringErrors) {
 // Parse an assignment expression. This includes applications of
 // operators like `+=`.
 
-pp$4.parseMaybeAssign = function(forInit, refDestructuringErrors, afterLeftParse) {
+pp$5.parseMaybeAssign = function(forInit, refDestructuringErrors, afterLeftParse) {
   if (this.isContextual("yield")) {
     if (this.inGenerator) { return this.parseYield(forInit) }
     // The tokenizer will assume an expression is allowed after
@@ -2409,10 +2419,11 @@ pp$4.parseMaybeAssign = function(forInit, refDestructuringErrors, afterLeftParse
     else { this.exprAllowed = false; }
   }
 
-  var ownDestructuringErrors = false, oldParenAssign = -1, oldTrailingComma = -1;
+  var ownDestructuringErrors = false, oldParenAssign = -1, oldTrailingComma = -1, oldDoubleProto = -1;
   if (refDestructuringErrors) {
     oldParenAssign = refDestructuringErrors.parenthesizedAssign;
     oldTrailingComma = refDestructuringErrors.trailingComma;
+    oldDoubleProto = refDestructuringErrors.doubleProto;
     refDestructuringErrors.parenthesizedAssign = refDestructuringErrors.trailingComma = -1;
   } else {
     refDestructuringErrors = new DestructuringErrors;
@@ -2420,7 +2431,7 @@ pp$4.parseMaybeAssign = function(forInit, refDestructuringErrors, afterLeftParse
   }
 
   var startPos = this.start, startLoc = this.startLoc;
-  if (this.type === types.parenL || this.type === types.name) {
+  if (this.type === types$1.parenL || this.type === types$1.name) {
     this.potentialArrowAt = this.start;
     this.potentialArrowInForAwait = forInit === "await";
   }
@@ -2429,20 +2440,21 @@ pp$4.parseMaybeAssign = function(forInit, refDestructuringErrors, afterLeftParse
   if (this.type.isAssign) {
     var node = this.startNodeAt(startPos, startLoc);
     node.operator = this.value;
-    if (this.type === types.eq)
+    if (this.type === types$1.eq)
       { left = this.toAssignable(left, false, refDestructuringErrors); }
     if (!ownDestructuringErrors) {
       refDestructuringErrors.parenthesizedAssign = refDestructuringErrors.trailingComma = refDestructuringErrors.doubleProto = -1;
     }
     if (refDestructuringErrors.shorthandAssign >= left.start)
       { refDestructuringErrors.shorthandAssign = -1; } // reset because shorthand default was used correctly
-    if (this.type === types.eq)
+    if (this.type === types$1.eq)
       { this.checkLValPattern(left); }
     else
       { this.checkLValSimple(left); }
     node.left = left;
     this.next();
     node.right = this.parseMaybeAssign(forInit);
+    if (oldDoubleProto > -1) { refDestructuringErrors.doubleProto = oldDoubleProto; }
     return this.finishNode(node, "AssignmentExpression")
   } else {
     if (ownDestructuringErrors) { this.checkExpressionErrors(refDestructuringErrors, true); }
@@ -2454,15 +2466,15 @@ pp$4.parseMaybeAssign = function(forInit, refDestructuringErrors, afterLeftParse
 
 // Parse a ternary conditional (`?:`) operator.
 
-pp$4.parseMaybeConditional = function(forInit, refDestructuringErrors) {
+pp$5.parseMaybeConditional = function(forInit, refDestructuringErrors) {
   var startPos = this.start, startLoc = this.startLoc;
   var expr = this.parseExprOps(forInit, refDestructuringErrors);
   if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
-  if (this.eat(types.question)) {
+  if (this.eat(types$1.question)) {
     var node = this.startNodeAt(startPos, startLoc);
     node.test = expr;
     node.consequent = this.parseMaybeAssign();
-    this.expect(types.colon);
+    this.expect(types$1.colon);
     node.alternate = this.parseMaybeAssign(forInit);
     return this.finishNode(node, "ConditionalExpression")
   }
@@ -2471,7 +2483,7 @@ pp$4.parseMaybeConditional = function(forInit, refDestructuringErrors) {
 
 // Start the precedence parser.
 
-pp$4.parseExprOps = function(forInit, refDestructuringErrors) {
+pp$5.parseExprOps = function(forInit, refDestructuringErrors) {
   var startPos = this.start, startLoc = this.startLoc;
   var expr = this.parseMaybeUnary(refDestructuringErrors, false, false, forInit);
   if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
@@ -2484,23 +2496,23 @@ pp$4.parseExprOps = function(forInit, refDestructuringErrors) {
 // defer further parser to one of its callers when it encounters an
 // operator that has a lower precedence than the set it is parsing.
 
-pp$4.parseExprOp = function(left, leftStartPos, leftStartLoc, minPrec, forInit) {
+pp$5.parseExprOp = function(left, leftStartPos, leftStartLoc, minPrec, forInit) {
   var prec = this.type.binop;
-  if (prec != null && (!forInit || this.type !== types._in)) {
+  if (prec != null && (!forInit || this.type !== types$1._in)) {
     if (prec > minPrec) {
-      var logical = this.type === types.logicalOR || this.type === types.logicalAND;
-      var coalesce = this.type === types.coalesce;
+      var logical = this.type === types$1.logicalOR || this.type === types$1.logicalAND;
+      var coalesce = this.type === types$1.coalesce;
       if (coalesce) {
         // Handle the precedence of `tt.coalesce` as equal to the range of logical expressions.
         // In other words, `node.right` shouldn't contain logical expressions in order to check the mixed error.
-        prec = types.logicalAND.binop;
+        prec = types$1.logicalAND.binop;
       }
       var op = this.value;
       this.next();
       var startPos = this.start, startLoc = this.startLoc;
       var right = this.parseExprOp(this.parseMaybeUnary(null, false, false, forInit), startPos, startLoc, prec, forInit);
       var node = this.buildBinary(leftStartPos, leftStartLoc, left, right, op, logical || coalesce);
-      if ((logical && this.type === types.coalesce) || (coalesce && (this.type === types.logicalOR || this.type === types.logicalAND))) {
+      if ((logical && this.type === types$1.coalesce) || (coalesce && (this.type === types$1.logicalOR || this.type === types$1.logicalAND))) {
         this.raiseRecoverable(this.start, "Logical expressions and coalesce expressions cannot be mixed. Wrap either by parentheses");
       }
       return this.parseExprOp(node, leftStartPos, leftStartLoc, minPrec, forInit)
@@ -2509,7 +2521,8 @@ pp$4.parseExprOp = function(left, leftStartPos, leftStartLoc, minPrec, forInit)
   return left
 };
 
-pp$4.buildBinary = function(startPos, startLoc, left, right, op, logical) {
+pp$5.buildBinary = function(startPos, startLoc, left, right, op, logical) {
+  if (right.type === "PrivateIdentifier") { this.raise(right.start, "Private identifier can only be left side of binary expression"); }
   var node = this.startNodeAt(startPos, startLoc);
   node.left = left;
   node.operator = op;
@@ -2519,13 +2532,13 @@ pp$4.buildBinary = function(startPos, startLoc, left, right, op, logical) {
 
 // Parse unary operators, both prefix and postfix.
 
-pp$4.parseMaybeUnary = function(refDestructuringErrors, sawUnary, incDec, forInit) {
+pp$5.parseMaybeUnary = function(refDestructuringErrors, sawUnary, incDec, forInit) {
   var startPos = this.start, startLoc = this.startLoc, expr;
   if (this.isContextual("await") && this.canAwait) {
     expr = this.parseAwait(forInit);
     sawUnary = true;
   } else if (this.type.prefix) {
-    var node = this.startNode(), update = this.type === types.incDec;
+    var node = this.startNode(), update = this.type === types$1.incDec;
     node.operator = this.value;
     node.prefix = true;
     this.next();
@@ -2539,6 +2552,11 @@ pp$4.parseMaybeUnary = function(refDestructuringErrors, sawUnary, incDec, forIni
       { this.raiseRecoverable(node.start, "Private fields can not be deleted"); }
     else { sawUnary = true; }
     expr = this.finishNode(node, update ? "UpdateExpression" : "UnaryExpression");
+  } else if (!sawUnary && this.type === types$1.privateId) {
+    if (forInit || this.privateNameStack.length === 0) { this.unexpected(); }
+    expr = this.parsePrivateIdent();
+    // only could be private fields in 'in', such as #x in obj
+    if (this.type !== types$1._in) { this.unexpected(); }
   } else {
     expr = this.parseExprSubscripts(refDestructuringErrors, forInit);
     if (this.checkExpressionErrors(refDestructuringErrors)) { return expr }
@@ -2553,7 +2571,7 @@ pp$4.parseMaybeUnary = function(refDestructuringErrors, sawUnary, incDec, forIni
     }
   }
 
-  if (!incDec && this.eat(types.starstar)) {
+  if (!incDec && this.eat(types$1.starstar)) {
     if (sawUnary)
       { this.unexpected(this.lastTokStart); }
     else
@@ -2572,7 +2590,7 @@ function isPrivateFieldAccess(node) {
 
 // Parse call, dot, and `[]`-subscript expressions.
 
-pp$4.parseExprSubscripts = function(refDestructuringErrors, forInit) {
+pp$5.parseExprSubscripts = function(refDestructuringErrors, forInit) {
   var startPos = this.start, startLoc = this.startLoc;
   var expr = this.parseExprAtom(refDestructuringErrors, forInit);
   if (expr.type === "ArrowFunctionExpression" && this.input.slice(this.lastTokStart, this.lastTokEnd) !== ")")
@@ -2586,7 +2604,7 @@ pp$4.parseExprSubscripts = function(refDestructuringErrors, forInit) {
   return result
 };
 
-pp$4.parseSubscripts = function(base, startPos, startLoc, noCalls, forInit) {
+pp$5.parseSubscripts = function(base, startPos, startLoc, noCalls, forInit) {
   var maybeAsyncArrow = this.options.ecmaVersion >= 8 && base.type === "Identifier" && base.name === "async" &&
       this.lastTokEnd === base.end && !this.canInsertSemicolon() && base.end - base.start === 5 &&
       this.potentialArrowAt === base.start;
@@ -2609,19 +2627,19 @@ pp$4.parseSubscripts = function(base, startPos, startLoc, noCalls, forInit) {
   }
 };
 
-pp$4.parseSubscript = function(base, startPos, startLoc, noCalls, maybeAsyncArrow, optionalChained, forInit) {
+pp$5.parseSubscript = function(base, startPos, startLoc, noCalls, maybeAsyncArrow, optionalChained, forInit) {
   var optionalSupported = this.options.ecmaVersion >= 11;
-  var optional = optionalSupported && this.eat(types.questionDot);
+  var optional = optionalSupported && this.eat(types$1.questionDot);
   if (noCalls && optional) { this.raise(this.lastTokStart, "Optional chaining cannot appear in the callee of new expressions"); }
 
-  var computed = this.eat(types.bracketL);
-  if (computed || (optional && this.type !== types.parenL && this.type !== types.backQuote) || this.eat(types.dot)) {
+  var computed = this.eat(types$1.bracketL);
+  if (computed || (optional && this.type !== types$1.parenL && this.type !== types$1.backQuote) || this.eat(types$1.dot)) {
     var node = this.startNodeAt(startPos, startLoc);
     node.object = base;
     if (computed) {
       node.property = this.parseExpression();
-      this.expect(types.bracketR);
-    } else if (this.type === types.privateId && base.type !== "Super") {
+      this.expect(types$1.bracketR);
+    } else if (this.type === types$1.privateId && base.type !== "Super") {
       node.property = this.parsePrivateIdent();
     } else {
       node.property = this.parseIdent(this.options.allowReserved !== "never");
@@ -2631,13 +2649,13 @@ pp$4.parseSubscript = function(base, startPos, startLoc, noCalls, maybeAsyncArro
       node.optional = optional;
     }
     base = this.finishNode(node, "MemberExpression");
-  } else if (!noCalls && this.eat(types.parenL)) {
+  } else if (!noCalls && this.eat(types$1.parenL)) {
     var refDestructuringErrors = new DestructuringErrors, oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos;
     this.yieldPos = 0;
     this.awaitPos = 0;
     this.awaitIdentPos = 0;
-    var exprList = this.parseExprList(types.parenR, this.options.ecmaVersion >= 8, false, refDestructuringErrors);
-    if (maybeAsyncArrow && !optional && !this.canInsertSemicolon() && this.eat(types.arrow)) {
+    var exprList = this.parseExprList(types$1.parenR, this.options.ecmaVersion >= 8, false, refDestructuringErrors);
+    if (maybeAsyncArrow && !optional && !this.canInsertSemicolon() && this.eat(types$1.arrow)) {
       this.checkPatternErrors(refDestructuringErrors, false);
       this.checkYieldAwaitInDefaultParams();
       if (this.awaitIdentPos > 0)
@@ -2658,7 +2676,7 @@ pp$4.parseSubscript = function(base, startPos, startLoc, noCalls, maybeAsyncArro
       node$1.optional = optional;
     }
     base = this.finishNode(node$1, "CallExpression");
-  } else if (this.type === types.backQuote) {
+  } else if (this.type === types$1.backQuote) {
     if (optional || optionalChained) {
       this.raise(this.start, "Optional chaining cannot appear in the tag of tagged template expressions");
     }
@@ -2675,19 +2693,19 @@ pp$4.parseSubscript = function(base, startPos, startLoc, noCalls, maybeAsyncArro
 // `new`, or an expression wrapped in punctuation like `()`, `[]`,
 // or `{}`.
 
-pp$4.parseExprAtom = function(refDestructuringErrors, forInit) {
+pp$5.parseExprAtom = function(refDestructuringErrors, forInit) {
   // If a division operator appears in an expression position, the
   // tokenizer got confused, and we force it to read a regexp instead.
-  if (this.type === types.slash) { this.readRegexp(); }
+  if (this.type === types$1.slash) { this.readRegexp(); }
 
   var node, canBeArrow = this.potentialArrowAt === this.start;
   switch (this.type) {
-  case types._super:
+  case types$1._super:
     if (!this.allowSuper)
       { this.raise(this.start, "'super' keyword outside a method"); }
     node = this.startNode();
     this.next();
-    if (this.type === types.parenL && !this.allowDirectSuper)
+    if (this.type === types$1.parenL && !this.allowDirectSuper)
       { this.raise(node.start, "super() call outside constructor of a subclass"); }
     // The `super` keyword can appear at below:
     // SuperProperty:
@@ -2695,52 +2713,52 @@ pp$4.parseExprAtom = function(refDestructuringErrors, forInit) {
     //     super . IdentifierName
     // SuperCall:
     //     super ( Arguments )
-    if (this.type !== types.dot && this.type !== types.bracketL && this.type !== types.parenL)
+    if (this.type !== types$1.dot && this.type !== types$1.bracketL && this.type !== types$1.parenL)
       { this.unexpected(); }
     return this.finishNode(node, "Super")
 
-  case types._this:
+  case types$1._this:
     node = this.startNode();
     this.next();
     return this.finishNode(node, "ThisExpression")
 
-  case types.name:
+  case types$1.name:
     var startPos = this.start, startLoc = this.startLoc, containsEsc = this.containsEsc;
     var id = this.parseIdent(false);
-    if (this.options.ecmaVersion >= 8 && !containsEsc && id.name === "async" && !this.canInsertSemicolon() && this.eat(types._function)) {
-      this.overrideContext(types$1.f_expr);
+    if (this.options.ecmaVersion >= 8 && !containsEsc && id.name === "async" && !this.canInsertSemicolon() && this.eat(types$1._function)) {
+      this.overrideContext(types.f_expr);
       return this.parseFunction(this.startNodeAt(startPos, startLoc), 0, false, true, forInit)
     }
     if (canBeArrow && !this.canInsertSemicolon()) {
-      if (this.eat(types.arrow))
+      if (this.eat(types$1.arrow))
         { return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], false, forInit) }
-      if (this.options.ecmaVersion >= 8 && id.name === "async" && this.type === types.name && !containsEsc &&
+      if (this.options.ecmaVersion >= 8 && id.name === "async" && this.type === types$1.name && !containsEsc &&
           (!this.potentialArrowInForAwait || this.value !== "of" || this.containsEsc)) {
         id = this.parseIdent(false);
-        if (this.canInsertSemicolon() || !this.eat(types.arrow))
+        if (this.canInsertSemicolon() || !this.eat(types$1.arrow))
           { this.unexpected(); }
         return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), [id], true, forInit)
       }
     }
     return id
 
-  case types.regexp:
+  case types$1.regexp:
     var value = this.value;
     node = this.parseLiteral(value.value);
     node.regex = {pattern: value.pattern, flags: value.flags};
     return node
 
-  case types.num: case types.string:
+  case types$1.num: case types$1.string:
     return this.parseLiteral(this.value)
 
-  case types._null: case types._true: case types._false:
+  case types$1._null: case types$1._true: case types$1._false:
     node = this.startNode();
-    node.value = this.type === types._null ? null : this.type === types._true;
+    node.value = this.type === types$1._null ? null : this.type === types$1._true;
     node.raw = this.type.keyword;
     this.next();
     return this.finishNode(node, "Literal")
 
-  case types.parenL:
+  case types$1.parenL:
     var start = this.start, expr = this.parseParenAndDistinguishExpression(canBeArrow, forInit);
     if (refDestructuringErrors) {
       if (refDestructuringErrors.parenthesizedAssign < 0 && !this.isSimpleAssignTarget(expr))
@@ -2750,31 +2768,31 @@ pp$4.parseExprAtom = function(refDestructuringErrors, forInit) {
     }
     return expr
 
-  case types.bracketL:
+  case types$1.bracketL:
     node = this.startNode();
     this.next();
-    node.elements = this.parseExprList(types.bracketR, true, true, refDestructuringErrors);
+    node.elements = this.parseExprList(types$1.bracketR, true, true, refDestructuringErrors);
     return this.finishNode(node, "ArrayExpression")
 
-  case types.braceL:
-    this.overrideContext(types$1.b_expr);
+  case types$1.braceL:
+    this.overrideContext(types.b_expr);
     return this.parseObj(false, refDestructuringErrors)
 
-  case types._function:
+  case types$1._function:
     node = this.startNode();
     this.next();
     return this.parseFunction(node, 0)
 
-  case types._class:
+  case types$1._class:
     return this.parseClass(this.startNode(), false)
 
-  case types._new:
+  case types$1._new:
     return this.parseNew()
 
-  case types.backQuote:
+  case types$1.backQuote:
     return this.parseTemplate()
 
-  case types._import:
+  case types$1._import:
     if (this.options.ecmaVersion >= 11) {
       return this.parseExprImport()
     } else {
@@ -2786,7 +2804,7 @@ pp$4.parseExprAtom = function(refDestructuringErrors, forInit) {
   }
 };
 
-pp$4.parseExprImport = function() {
+pp$5.parseExprImport = function() {
   var node = this.startNode();
 
   // Consume `import` as an identifier for `import.meta`.
@@ -2795,9 +2813,9 @@ pp$4.parseExprImport = function() {
   var meta = this.parseIdent(true);
 
   switch (this.type) {
-  case types.parenL:
+  case types$1.parenL:
     return this.parseDynamicImport(node)
-  case types.dot:
+  case types$1.dot:
     node.meta = meta;
     return this.parseImportMeta(node)
   default:
@@ -2805,16 +2823,16 @@ pp$4.parseExprImport = function() {
   }
 };
 
-pp$4.parseDynamicImport = function(node) {
+pp$5.parseDynamicImport = function(node) {
   this.next(); // skip `(`
 
   // Parse node.source.
   node.source = this.parseMaybeAssign();
 
   // Verify ending.
-  if (!this.eat(types.parenR)) {
+  if (!this.eat(types$1.parenR)) {
     var errorPos = this.start;
-    if (this.eat(types.comma) && this.eat(types.parenR)) {
+    if (this.eat(types$1.comma) && this.eat(types$1.parenR)) {
       this.raiseRecoverable(errorPos, "Trailing comma is not allowed in import()");
     } else {
       this.unexpected(errorPos);
@@ -2824,7 +2842,7 @@ pp$4.parseDynamicImport = function(node) {
   return this.finishNode(node, "ImportExpression")
 };
 
-pp$4.parseImportMeta = function(node) {
+pp$5.parseImportMeta = function(node) {
   this.next(); // skip `.`
 
   var containsEsc = this.containsEsc;
@@ -2840,7 +2858,7 @@ pp$4.parseImportMeta = function(node) {
   return this.finishNode(node, "MetaProperty")
 };
 
-pp$4.parseLiteral = function(value) {
+pp$5.parseLiteral = function(value) {
   var node = this.startNode();
   node.value = value;
   node.raw = this.input.slice(this.start, this.end);
@@ -2849,14 +2867,14 @@ pp$4.parseLiteral = function(value) {
   return this.finishNode(node, "Literal")
 };
 
-pp$4.parseParenExpression = function() {
-  this.expect(types.parenL);
+pp$5.parseParenExpression = function() {
+  this.expect(types$1.parenL);
   var val = this.parseExpression();
-  this.expect(types.parenR);
+  this.expect(types$1.parenR);
   return val
 };
 
-pp$4.parseParenAndDistinguishExpression = function(canBeArrow, forInit) {
+pp$5.parseParenAndDistinguishExpression = function(canBeArrow, forInit) {
   var startPos = this.start, startLoc = this.startLoc, val, allowTrailingComma = this.options.ecmaVersion >= 8;
   if (this.options.ecmaVersion >= 6) {
     this.next();
@@ -2867,24 +2885,24 @@ pp$4.parseParenAndDistinguishExpression = function(canBeArrow, forInit) {
     this.yieldPos = 0;
     this.awaitPos = 0;
     // Do not save awaitIdentPos to allow checking awaits nested in parameters
-    while (this.type !== types.parenR) {
-      first ? first = false : this.expect(types.comma);
-      if (allowTrailingComma && this.afterTrailingComma(types.parenR, true)) {
+    while (this.type !== types$1.parenR) {
+      first ? first = false : this.expect(types$1.comma);
+      if (allowTrailingComma && this.afterTrailingComma(types$1.parenR, true)) {
         lastIsComma = true;
         break
-      } else if (this.type === types.ellipsis) {
+      } else if (this.type === types$1.ellipsis) {
         spreadStart = this.start;
         exprList.push(this.parseParenItem(this.parseRestBinding()));
-        if (this.type === types.comma) { this.raise(this.start, "Comma is not permitted after the rest element"); }
+        if (this.type === types$1.comma) { this.raise(this.start, "Comma is not permitted after the rest element"); }
         break
       } else {
         exprList.push(this.parseMaybeAssign(false, refDestructuringErrors, this.parseParenItem));
       }
     }
     var innerEndPos = this.lastTokEnd, innerEndLoc = this.lastTokEndLoc;
-    this.expect(types.parenR);
+    this.expect(types$1.parenR);
 
-    if (canBeArrow && !this.canInsertSemicolon() && this.eat(types.arrow)) {
+    if (canBeArrow && !this.canInsertSemicolon() && this.eat(types$1.arrow)) {
       this.checkPatternErrors(refDestructuringErrors, false);
       this.checkYieldAwaitInDefaultParams();
       this.yieldPos = oldYieldPos;
@@ -2918,12 +2936,12 @@ pp$4.parseParenAndDistinguishExpression = function(canBeArrow, forInit) {
   }
 };
 
-pp$4.parseParenItem = function(item) {
+pp$5.parseParenItem = function(item) {
   return item
 };
 
-pp$4.parseParenArrowList = function(startPos, startLoc, exprList, forInit) {
-  return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList, forInit)
+pp$5.parseParenArrowList = function(startPos, startLoc, exprList, forInit) {
+  return this.parseArrowExpression(this.startNodeAt(startPos, startLoc), exprList, false, forInit)
 };
 
 // New's precedence is slightly tricky. It must allow its argument to
@@ -2932,13 +2950,13 @@ pp$4.parseParenArrowList = function(startPos, startLoc, exprList, forInit) {
 // argument to parseSubscripts to prevent it from consuming the
 // argument list.
 
-var empty$1 = [];
+var empty = [];
 
-pp$4.parseNew = function() {
+pp$5.parseNew = function() {
   if (this.containsEsc) { this.raiseRecoverable(this.start, "Escape sequence in keyword new"); }
   var node = this.startNode();
   var meta = this.parseIdent(true);
-  if (this.options.ecmaVersion >= 6 && this.eat(types.dot)) {
+  if (this.options.ecmaVersion >= 6 && this.eat(types$1.dot)) {
     node.meta = meta;
     var containsEsc = this.containsEsc;
     node.property = this.parseIdent(true);
@@ -2950,23 +2968,23 @@ pp$4.parseNew = function() {
       { this.raiseRecoverable(node.start, "'new.target' can only be used in functions and class static block"); }
     return this.finishNode(node, "MetaProperty")
   }
-  var startPos = this.start, startLoc = this.startLoc, isImport = this.type === types._import;
+  var startPos = this.start, startLoc = this.startLoc, isImport = this.type === types$1._import;
   node.callee = this.parseSubscripts(this.parseExprAtom(), startPos, startLoc, true, false);
   if (isImport && node.callee.type === "ImportExpression") {
     this.raise(startPos, "Cannot use new with import()");
   }
-  if (this.eat(types.parenL)) { node.arguments = this.parseExprList(types.parenR, this.options.ecmaVersion >= 8, false); }
-  else { node.arguments = empty$1; }
+  if (this.eat(types$1.parenL)) { node.arguments = this.parseExprList(types$1.parenR, this.options.ecmaVersion >= 8, false); }
+  else { node.arguments = empty; }
   return this.finishNode(node, "NewExpression")
 };
 
 // Parse template expression.
 
-pp$4.parseTemplateElement = function(ref) {
+pp$5.parseTemplateElement = function(ref) {
   var isTagged = ref.isTagged;
 
   var elem = this.startNode();
-  if (this.type === types.invalidTemplate) {
+  if (this.type === types$1.invalidTemplate) {
     if (!isTagged) {
       this.raiseRecoverable(this.start, "Bad escape sequence in untagged template literal");
     }
@@ -2981,11 +2999,11 @@ pp$4.parseTemplateElement = function(ref) {
     };
   }
   this.next();
-  elem.tail = this.type === types.backQuote;
+  elem.tail = this.type === types$1.backQuote;
   return this.finishNode(elem, "TemplateElement")
 };
 
-pp$4.parseTemplate = function(ref) {
+pp$5.parseTemplate = function(ref) {
   if ( ref === void 0 ) ref = {};
   var isTagged = ref.isTagged; if ( isTagged === void 0 ) isTagged = false;
 
@@ -2995,32 +3013,32 @@ pp$4.parseTemplate = function(ref) {
   var curElt = this.parseTemplateElement({isTagged: isTagged});
   node.quasis = [curElt];
   while (!curElt.tail) {
-    if (this.type === types.eof) { this.raise(this.pos, "Unterminated template literal"); }
-    this.expect(types.dollarBraceL);
+    if (this.type === types$1.eof) { this.raise(this.pos, "Unterminated template literal"); }
+    this.expect(types$1.dollarBraceL);
     node.expressions.push(this.parseExpression());
-    this.expect(types.braceR);
+    this.expect(types$1.braceR);
     node.quasis.push(curElt = this.parseTemplateElement({isTagged: isTagged}));
   }
   this.next();
   return this.finishNode(node, "TemplateLiteral")
 };
 
-pp$4.isAsyncProp = function(prop) {
+pp$5.isAsyncProp = function(prop) {
   return !prop.computed && prop.key.type === "Identifier" && prop.key.name === "async" &&
-    (this.type === types.name || this.type === types.num || this.type === types.string || this.type === types.bracketL || this.type.keyword || (this.options.ecmaVersion >= 9 && this.type === types.star)) &&
+    (this.type === types$1.name || this.type === types$1.num || this.type === types$1.string || this.type === types$1.bracketL || this.type.keyword || (this.options.ecmaVersion >= 9 && this.type === types$1.star)) &&
     !lineBreak.test(this.input.slice(this.lastTokEnd, this.start))
 };
 
 // Parse an object literal or binding pattern.
 
-pp$4.parseObj = function(isPattern, refDestructuringErrors) {
+pp$5.parseObj = function(isPattern, refDestructuringErrors) {
   var node = this.startNode(), first = true, propHash = {};
   node.properties = [];
   this.next();
-  while (!this.eat(types.braceR)) {
+  while (!this.eat(types$1.braceR)) {
     if (!first) {
-      this.expect(types.comma);
-      if (this.options.ecmaVersion >= 5 && this.afterTrailingComma(types.braceR)) { break }
+      this.expect(types$1.comma);
+      if (this.options.ecmaVersion >= 5 && this.afterTrailingComma(types$1.braceR)) { break }
     } else { first = false; }
 
     var prop = this.parseProperty(isPattern, refDestructuringErrors);
@@ -3030,18 +3048,18 @@ pp$4.parseObj = function(isPattern, refDestructuringErrors) {
   return this.finishNode(node, isPattern ? "ObjectPattern" : "ObjectExpression")
 };
 
-pp$4.parseProperty = function(isPattern, refDestructuringErrors) {
+pp$5.parseProperty = function(isPattern, refDestructuringErrors) {
   var prop = this.startNode(), isGenerator, isAsync, startPos, startLoc;
-  if (this.options.ecmaVersion >= 9 && this.eat(types.ellipsis)) {
+  if (this.options.ecmaVersion >= 9 && this.eat(types$1.ellipsis)) {
     if (isPattern) {
       prop.argument = this.parseIdent(false);
-      if (this.type === types.comma) {
+      if (this.type === types$1.comma) {
         this.raise(this.start, "Comma is not permitted after the rest element");
       }
       return this.finishNode(prop, "RestElement")
     }
     // To disallow parenthesized identifier via `this.toAssignable()`.
-    if (this.type === types.parenL && refDestructuringErrors) {
+    if (this.type === types$1.parenL && refDestructuringErrors) {
       if (refDestructuringErrors.parenthesizedAssign < 0) {
         refDestructuringErrors.parenthesizedAssign = this.start;
       }
@@ -3052,7 +3070,7 @@ pp$4.parseProperty = function(isPattern, refDestructuringErrors) {
     // Parse argument.
     prop.argument = this.parseMaybeAssign(false, refDestructuringErrors);
     // To disallow trailing comma via `this.toAssignable()`.
-    if (this.type === types.comma && refDestructuringErrors && refDestructuringErrors.trailingComma < 0) {
+    if (this.type === types$1.comma && refDestructuringErrors && refDestructuringErrors.trailingComma < 0) {
       refDestructuringErrors.trailingComma = this.start;
     }
     // Finish
@@ -3066,13 +3084,13 @@ pp$4.parseProperty = function(isPattern, refDestructuringErrors) {
       startLoc = this.startLoc;
     }
     if (!isPattern)
-      { isGenerator = this.eat(types.star); }
+      { isGenerator = this.eat(types$1.star); }
   }
   var containsEsc = this.containsEsc;
   this.parsePropertyName(prop);
   if (!isPattern && !containsEsc && this.options.ecmaVersion >= 8 && !isGenerator && this.isAsyncProp(prop)) {
     isAsync = true;
-    isGenerator = this.options.ecmaVersion >= 9 && this.eat(types.star);
+    isGenerator = this.options.ecmaVersion >= 9 && this.eat(types$1.star);
     this.parsePropertyName(prop, refDestructuringErrors);
   } else {
     isAsync = false;
@@ -3081,14 +3099,14 @@ pp$4.parseProperty = function(isPattern, refDestructuringErrors) {
   return this.finishNode(prop, "Property")
 };
 
-pp$4.parsePropertyValue = function(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors, containsEsc) {
-  if ((isGenerator || isAsync) && this.type === types.colon)
+pp$5.parsePropertyValue = function(prop, isPattern, isGenerator, isAsync, startPos, startLoc, refDestructuringErrors, containsEsc) {
+  if ((isGenerator || isAsync) && this.type === types$1.colon)
     { this.unexpected(); }
 
-  if (this.eat(types.colon)) {
+  if (this.eat(types$1.colon)) {
     prop.value = isPattern ? this.parseMaybeDefault(this.start, this.startLoc) : this.parseMaybeAssign(false, refDestructuringErrors);
     prop.kind = "init";
-  } else if (this.options.ecmaVersion >= 6 && this.type === types.parenL) {
+  } else if (this.options.ecmaVersion >= 6 && this.type === types$1.parenL) {
     if (isPattern) { this.unexpected(); }
     prop.kind = "init";
     prop.method = true;
@@ -3096,7 +3114,7 @@ pp$4.parsePropertyValue = function(prop, isPattern, isGenerator, isAsync, startP
   } else if (!isPattern && !containsEsc &&
              this.options.ecmaVersion >= 5 && !prop.computed && prop.key.type === "Identifier" &&
              (prop.key.name === "get" || prop.key.name === "set") &&
-             (this.type !== types.comma && this.type !== types.braceR && this.type !== types.eq)) {
+             (this.type !== types$1.comma && this.type !== types$1.braceR && this.type !== types$1.eq)) {
     if (isGenerator || isAsync) { this.unexpected(); }
     prop.kind = prop.key.name;
     this.parsePropertyName(prop);
@@ -3120,7 +3138,7 @@ pp$4.parsePropertyValue = function(prop, isPattern, isGenerator, isAsync, startP
     prop.kind = "init";
     if (isPattern) {
       prop.value = this.parseMaybeDefault(startPos, startLoc, this.copyNode(prop.key));
-    } else if (this.type === types.eq && refDestructuringErrors) {
+    } else if (this.type === types$1.eq && refDestructuringErrors) {
       if (refDestructuringErrors.shorthandAssign < 0)
         { refDestructuringErrors.shorthandAssign = this.start; }
       prop.value = this.parseMaybeDefault(startPos, startLoc, this.copyNode(prop.key));
@@ -3131,23 +3149,23 @@ pp$4.parsePropertyValue = function(prop, isPattern, isGenerator, isAsync, startP
   } else { this.unexpected(); }
 };
 
-pp$4.parsePropertyName = function(prop) {
+pp$5.parsePropertyName = function(prop) {
   if (this.options.ecmaVersion >= 6) {
-    if (this.eat(types.bracketL)) {
+    if (this.eat(types$1.bracketL)) {
       prop.computed = true;
       prop.key = this.parseMaybeAssign();
-      this.expect(types.bracketR);
+      this.expect(types$1.bracketR);
       return prop.key
     } else {
       prop.computed = false;
     }
   }
-  return prop.key = this.type === types.num || this.type === types.string ? this.parseExprAtom() : this.parseIdent(this.options.allowReserved !== "never")
+  return prop.key = this.type === types$1.num || this.type === types$1.string ? this.parseExprAtom() : this.parseIdent(this.options.allowReserved !== "never")
 };
 
 // Initialize empty function node.
 
-pp$4.initFunction = function(node) {
+pp$5.initFunction = function(node) {
   node.id = null;
   if (this.options.ecmaVersion >= 6) { node.generator = node.expression = false; }
   if (this.options.ecmaVersion >= 8) { node.async = false; }
@@ -3155,7 +3173,7 @@ pp$4.initFunction = function(node) {
 
 // Parse object or class method.
 
-pp$4.parseMethod = function(isGenerator, isAsync, allowDirectSuper) {
+pp$5.parseMethod = function(isGenerator, isAsync, allowDirectSuper) {
   var node = this.startNode(), oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos;
 
   this.initFunction(node);
@@ -3169,8 +3187,8 @@ pp$4.parseMethod = function(isGenerator, isAsync, allowDirectSuper) {
   this.awaitIdentPos = 0;
   this.enterScope(functionFlags(isAsync, node.generator) | SCOPE_SUPER | (allowDirectSuper ? SCOPE_DIRECT_SUPER : 0));
 
-  this.expect(types.parenL);
-  node.params = this.parseBindingList(types.parenR, false, this.options.ecmaVersion >= 8);
+  this.expect(types$1.parenL);
+  node.params = this.parseBindingList(types$1.parenR, false, this.options.ecmaVersion >= 8);
   this.checkYieldAwaitInDefaultParams();
   this.parseFunctionBody(node, false, true, false);
 
@@ -3182,7 +3200,7 @@ pp$4.parseMethod = function(isGenerator, isAsync, allowDirectSuper) {
 
 // Parse arrow function expression with given parameters.
 
-pp$4.parseArrowExpression = function(node, params, isAsync, forInit) {
+pp$5.parseArrowExpression = function(node, params, isAsync, forInit) {
   var oldYieldPos = this.yieldPos, oldAwaitPos = this.awaitPos, oldAwaitIdentPos = this.awaitIdentPos;
 
   this.enterScope(functionFlags(isAsync, false) | SCOPE_ARROW);
@@ -3204,8 +3222,8 @@ pp$4.parseArrowExpression = function(node, params, isAsync, forInit) {
 
 // Parse function body and check parameters.
 
-pp$4.parseFunctionBody = function(node, isArrowFunction, isMethod, forInit) {
-  var isExpression = isArrowFunction && this.type !== types.braceL;
+pp$5.parseFunctionBody = function(node, isArrowFunction, isMethod, forInit) {
+  var isExpression = isArrowFunction && this.type !== types$1.braceL;
   var oldStrict = this.strict, useStrict = false;
 
   if (isExpression) {
@@ -3241,7 +3259,7 @@ pp$4.parseFunctionBody = function(node, isArrowFunction, isMethod, forInit) {
   this.exitScope();
 };
 
-pp$4.isSimpleParamList = function(params) {
+pp$5.isSimpleParamList = function(params) {
   for (var i = 0, list = params; i < list.length; i += 1)
     {
     var param = list[i];
@@ -3254,7 +3272,7 @@ pp$4.isSimpleParamList = function(params) {
 // Checks function params for various disallowed patterns such as using "eval"
 // or "arguments" and duplicate parameters.
 
-pp$4.checkParams = function(node, allowDuplicates) {
+pp$5.checkParams = function(node, allowDuplicates) {
   var nameHash = Object.create(null);
   for (var i = 0, list = node.params; i < list.length; i += 1)
     {
@@ -3270,20 +3288,20 @@ pp$4.checkParams = function(node, allowDuplicates) {
 // nothing in between them to be parsed as `null` (which is needed
 // for array literals).
 
-pp$4.parseExprList = function(close, allowTrailingComma, allowEmpty, refDestructuringErrors) {
+pp$5.parseExprList = function(close, allowTrailingComma, allowEmpty, refDestructuringErrors) {
   var elts = [], first = true;
   while (!this.eat(close)) {
     if (!first) {
-      this.expect(types.comma);
+      this.expect(types$1.comma);
       if (allowTrailingComma && this.afterTrailingComma(close)) { break }
     } else { first = false; }
 
     var elt = (void 0);
-    if (allowEmpty && this.type === types.comma)
+    if (allowEmpty && this.type === types$1.comma)
       { elt = null; }
-    else if (this.type === types.ellipsis) {
+    else if (this.type === types$1.ellipsis) {
       elt = this.parseSpread(refDestructuringErrors);
-      if (refDestructuringErrors && this.type === types.comma && refDestructuringErrors.trailingComma < 0)
+      if (refDestructuringErrors && this.type === types$1.comma && refDestructuringErrors.trailingComma < 0)
         { refDestructuringErrors.trailingComma = this.start; }
     } else {
       elt = this.parseMaybeAssign(false, refDestructuringErrors);
@@ -3293,7 +3311,7 @@ pp$4.parseExprList = function(close, allowTrailingComma, allowEmpty, refDestruct
   return elts
 };
 
-pp$4.checkUnreserved = function(ref) {
+pp$5.checkUnreserved = function(ref) {
   var start = ref.start;
   var end = ref.end;
   var name = ref.name;
@@ -3322,9 +3340,9 @@ pp$4.checkUnreserved = function(ref) {
 // when parsing properties), it will also convert keywords into
 // identifiers.
 
-pp$4.parseIdent = function(liberal, isBinding) {
+pp$5.parseIdent = function(liberal, isBinding) {
   var node = this.startNode();
-  if (this.type === types.name) {
+  if (this.type === types$1.name) {
     node.name = this.value;
   } else if (this.type.keyword) {
     node.name = this.type.keyword;
@@ -3350,9 +3368,9 @@ pp$4.parseIdent = function(liberal, isBinding) {
   return node
 };
 
-pp$4.parsePrivateIdent = function() {
+pp$5.parsePrivateIdent = function() {
   var node = this.startNode();
-  if (this.type === types.privateId) {
+  if (this.type === types$1.privateId) {
     node.name = this.value;
   } else {
     this.unexpected();
@@ -3372,22 +3390,22 @@ pp$4.parsePrivateIdent = function() {
 
 // Parses yield expression inside generator.
 
-pp$4.parseYield = function(forInit) {
+pp$5.parseYield = function(forInit) {
   if (!this.yieldPos) { this.yieldPos = this.start; }
 
   var node = this.startNode();
   this.next();
-  if (this.type === types.semi || this.canInsertSemicolon() || (this.type !== types.star && !this.type.startsExpr)) {
+  if (this.type === types$1.semi || this.canInsertSemicolon() || (this.type !== types$1.star && !this.type.startsExpr)) {
     node.delegate = false;
     node.argument = null;
   } else {
-    node.delegate = this.eat(types.star);
+    node.delegate = this.eat(types$1.star);
     node.argument = this.parseMaybeAssign(forInit);
   }
   return this.finishNode(node, "YieldExpression")
 };
 
-pp$4.parseAwait = function(forInit) {
+pp$5.parseAwait = function(forInit) {
   if (!this.awaitPos) { this.awaitPos = this.start; }
 
   var node = this.startNode();
@@ -3396,7 +3414,7 @@ pp$4.parseAwait = function(forInit) {
   return this.finishNode(node, "AwaitExpression")
 };
 
-var pp$5 = Parser.prototype;
+var pp$4 = Parser.prototype;
 
 // This function is used to raise exceptions on parse errors. It
 // takes an offset integer (into the current `input`) to indicate
@@ -3404,7 +3422,7 @@ var pp$5 = Parser.prototype;
 // of the error message, and then raises a `SyntaxError` with that
 // message.
 
-pp$5.raise = function(pos, message) {
+pp$4.raise = function(pos, message) {
   var loc = getLineInfo(this.input, pos);
   message += " (" + loc.line + ":" + loc.column + ")";
   var err = new SyntaxError(message);
@@ -3412,15 +3430,15 @@ pp$5.raise = function(pos, message) {
   throw err
 };
 
-pp$5.raiseRecoverable = pp$5.raise;
+pp$4.raiseRecoverable = pp$4.raise;
 
-pp$5.curPosition = function() {
+pp$4.curPosition = function() {
   if (this.options.locations) {
     return new Position(this.curLine, this.pos - this.lineStart)
   }
 };
 
-var pp$6 = Parser.prototype;
+var pp$3 = Parser.prototype;
 
 var Scope = function Scope(flags) {
   this.flags = flags;
@@ -3436,22 +3454,22 @@ var Scope = function Scope(flags) {
 
 // The functions in this module keep track of declared variables in the current scope in order to detect duplicate variable names.
 
-pp$6.enterScope = function(flags) {
+pp$3.enterScope = function(flags) {
   this.scopeStack.push(new Scope(flags));
 };
 
-pp$6.exitScope = function() {
+pp$3.exitScope = function() {
   this.scopeStack.pop();
 };
 
 // The spec says:
 // > At the top level of a function, or script, function declarations are
 // > treated like var declarations rather than like lexical declarations.
-pp$6.treatFunctionsAsVarInScope = function(scope) {
+pp$3.treatFunctionsAsVarInScope = function(scope) {
   return (scope.flags & SCOPE_FUNCTION) || !this.inModule && (scope.flags & SCOPE_TOP)
 };
 
-pp$6.declareName = function(name, bindingType, pos) {
+pp$3.declareName = function(name, bindingType, pos) {
   var redeclared = false;
   if (bindingType === BIND_LEXICAL) {
     var scope = this.currentScope();
@@ -3486,7 +3504,7 @@ pp$6.declareName = function(name, bindingType, pos) {
   if (redeclared) { this.raiseRecoverable(pos, ("Identifier '" + name + "' has already been declared")); }
 };
 
-pp$6.checkLocalExport = function(id) {
+pp$3.checkLocalExport = function(id) {
   // scope.functions must be empty as Module code is always strict.
   if (this.scopeStack[0].lexical.indexOf(id.name) === -1 &&
       this.scopeStack[0].var.indexOf(id.name) === -1) {
@@ -3494,11 +3512,11 @@ pp$6.checkLocalExport = function(id) {
   }
 };
 
-pp$6.currentScope = function() {
+pp$3.currentScope = function() {
   return this.scopeStack[this.scopeStack.length - 1]
 };
 
-pp$6.currentVarScope = function() {
+pp$3.currentVarScope = function() {
   for (var i = this.scopeStack.length - 1;; i--) {
     var scope = this.scopeStack[i];
     if (scope.flags & SCOPE_VAR) { return scope }
@@ -3506,7 +3524,7 @@ pp$6.currentVarScope = function() {
 };
 
 // Could be useful for `this`, `new.target`, `super()`, `super.property`, and `super[property]`.
-pp$6.currentThisScope = function() {
+pp$3.currentThisScope = function() {
   for (var i = this.scopeStack.length - 1;; i--) {
     var scope = this.scopeStack[i];
     if (scope.flags & SCOPE_VAR && !(scope.flags & SCOPE_ARROW)) { return scope }
@@ -3527,13 +3545,13 @@ var Node = function Node(parser, pos, loc) {
 
 // Start an AST node, attaching a start offset.
 
-var pp$7 = Parser.prototype;
+var pp$2 = Parser.prototype;
 
-pp$7.startNode = function() {
+pp$2.startNode = function() {
   return new Node(this, this.start, this.startLoc)
 };
 
-pp$7.startNodeAt = function(pos, loc) {
+pp$2.startNodeAt = function(pos, loc) {
   return new Node(this, pos, loc)
 };
 
@@ -3549,17 +3567,17 @@ function finishNodeAt(node, type, pos, loc) {
   return node
 }
 
-pp$7.finishNode = function(node, type) {
+pp$2.finishNode = function(node, type) {
   return finishNodeAt.call(this, node, type, this.lastTokEnd, this.lastTokEndLoc)
 };
 
 // Finish node at given position
 
-pp$7.finishNodeAt = function(node, type, pos, loc) {
+pp$2.finishNodeAt = function(node, type, pos, loc) {
   return finishNodeAt.call(this, node, type, pos, loc)
 };
 
-pp$7.copyNode = function(node) {
+pp$2.copyNode = function(node) {
   var newNode = new Node(this, node.start, this.startLoc);
   for (var prop in node) { newNode[prop] = node[prop]; }
   return newNode
@@ -3616,7 +3634,7 @@ buildUnicodeData(10);
 buildUnicodeData(11);
 buildUnicodeData(12);
 
-var pp$8 = Parser.prototype;
+var pp$1 = Parser.prototype;
 
 var RegExpValidationState = function RegExpValidationState(parser) {
   this.parser = parser;
@@ -3712,7 +3730,7 @@ RegExpValidationState.prototype.eat = function eat (ch, forceU) {
   return false
 };
 
-function codePointToString(ch) {
+function codePointToString$1(ch) {
   if (ch <= 0xFFFF) { return String.fromCharCode(ch) }
   ch -= 0x10000;
   return String.fromCharCode((ch >> 10) + 0xD800, (ch & 0x03FF) + 0xDC00)
@@ -3724,7 +3742,7 @@ function codePointToString(ch) {
  * @param {RegExpValidationState} state The state to validate RegExp.
  * @returns {void}
  */
-pp$8.validateRegExpFlags = function(state) {
+pp$1.validateRegExpFlags = function(state) {
   var validFlags = state.validFlags;
   var flags = state.flags;
 
@@ -3745,7 +3763,7 @@ pp$8.validateRegExpFlags = function(state) {
  * @param {RegExpValidationState} state The state to validate RegExp.
  * @returns {void}
  */
-pp$8.validateRegExpPattern = function(state) {
+pp$1.validateRegExpPattern = function(state) {
   this.regexp_pattern(state);
 
   // The goal symbol for the parse is |Pattern[~U, ~N]|. If the result of
@@ -3760,7 +3778,7 @@ pp$8.validateRegExpPattern = function(state) {
 };
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-Pattern
-pp$8.regexp_pattern = function(state) {
+pp$1.regexp_pattern = function(state) {
   state.pos = 0;
   state.lastIntValue = 0;
   state.lastStringValue = "";
@@ -3794,7 +3812,7 @@ pp$8.regexp_pattern = function(state) {
 };
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-Disjunction
-pp$8.regexp_disjunction = function(state) {
+pp$1.regexp_disjunction = function(state) {
   this.regexp_alternative(state);
   while (state.eat(0x7C /* | */)) {
     this.regexp_alternative(state);
@@ -3810,13 +3828,13 @@ pp$8.regexp_disjunction = function(state) {
 };
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-Alternative
-pp$8.regexp_alternative = function(state) {
+pp$1.regexp_alternative = function(state) {
   while (state.pos < state.source.length && this.regexp_eatTerm(state))
     { }
 };
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-Term
-pp$8.regexp_eatTerm = function(state) {
+pp$1.regexp_eatTerm = function(state) {
   if (this.regexp_eatAssertion(state)) {
     // Handle `QuantifiableAssertion Quantifier` alternative.
     // `state.lastAssertionIsQuantifiable` is true if the last eaten Assertion
@@ -3839,7 +3857,7 @@ pp$8.regexp_eatTerm = function(state) {
 };
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-Assertion
-pp$8.regexp_eatAssertion = function(state) {
+pp$1.regexp_eatAssertion = function(state) {
   var start = state.pos;
   state.lastAssertionIsQuantifiable = false;
 
@@ -3877,7 +3895,7 @@ pp$8.regexp_eatAssertion = function(state) {
 };
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-Quantifier
-pp$8.regexp_eatQuantifier = function(state, noError) {
+pp$1.regexp_eatQuantifier = function(state, noError) {
   if ( noError === void 0 ) noError = false;
 
   if (this.regexp_eatQuantifierPrefix(state, noError)) {
@@ -3888,7 +3906,7 @@ pp$8.regexp_eatQuantifier = function(state, noError) {
 };
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-QuantifierPrefix
-pp$8.regexp_eatQuantifierPrefix = function(state, noError) {
+pp$1.regexp_eatQuantifierPrefix = function(state, noError) {
   return (
     state.eat(0x2A /* * */) ||
     state.eat(0x2B /* + */) ||
@@ -3896,7 +3914,7 @@ pp$8.regexp_eatQuantifierPrefix = function(state, noError) {
     this.regexp_eatBracedQuantifier(state, noError)
   )
 };
-pp$8.regexp_eatBracedQuantifier = function(state, noError) {
+pp$1.regexp_eatBracedQuantifier = function(state, noError) {
   var start = state.pos;
   if (state.eat(0x7B /* { */)) {
     var min = 0, max = -1;
@@ -3922,7 +3940,7 @@ pp$8.regexp_eatBracedQuantifier = function(state, noError) {
 };
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-Atom
-pp$8.regexp_eatAtom = function(state) {
+pp$1.regexp_eatAtom = function(state) {
   return (
     this.regexp_eatPatternCharacters(state) ||
     state.eat(0x2E /* . */) ||
@@ -3932,7 +3950,7 @@ pp$8.regexp_eatAtom = function(state) {
     this.regexp_eatCapturingGroup(state)
   )
 };
-pp$8.regexp_eatReverseSolidusAtomEscape = function(state) {
+pp$1.regexp_eatReverseSolidusAtomEscape = function(state) {
   var start = state.pos;
   if (state.eat(0x5C /* \ */)) {
     if (this.regexp_eatAtomEscape(state)) {
@@ -3942,7 +3960,7 @@ pp$8.regexp_eatReverseSolidusAtomEscape = function(state) {
   }
   return false
 };
-pp$8.regexp_eatUncapturingGroup = function(state) {
+pp$1.regexp_eatUncapturingGroup = function(state) {
   var start = state.pos;
   if (state.eat(0x28 /* ( */)) {
     if (state.eat(0x3F /* ? */) && state.eat(0x3A /* : */)) {
@@ -3956,7 +3974,7 @@ pp$8.regexp_eatUncapturingGroup = function(state) {
   }
   return false
 };
-pp$8.regexp_eatCapturingGroup = function(state) {
+pp$1.regexp_eatCapturingGroup = function(state) {
   if (state.eat(0x28 /* ( */)) {
     if (this.options.ecmaVersion >= 9) {
       this.regexp_groupSpecifier(state);
@@ -3974,7 +3992,7 @@ pp$8.regexp_eatCapturingGroup = function(state) {
 };
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ExtendedAtom
-pp$8.regexp_eatExtendedAtom = function(state) {
+pp$1.regexp_eatExtendedAtom = function(state) {
   return (
     state.eat(0x2E /* . */) ||
     this.regexp_eatReverseSolidusAtomEscape(state) ||
@@ -3987,7 +4005,7 @@ pp$8.regexp_eatExtendedAtom = function(state) {
 };
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-InvalidBracedQuantifier
-pp$8.regexp_eatInvalidBracedQuantifier = function(state) {
+pp$1.regexp_eatInvalidBracedQuantifier = function(state) {
   if (this.regexp_eatBracedQuantifier(state, true)) {
     state.raise("Nothing to repeat");
   }
@@ -3995,7 +4013,7 @@ pp$8.regexp_eatInvalidBracedQuantifier = function(state) {
 };
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-SyntaxCharacter
-pp$8.regexp_eatSyntaxCharacter = function(state) {
+pp$1.regexp_eatSyntaxCharacter = function(state) {
   var ch = state.current();
   if (isSyntaxCharacter(ch)) {
     state.lastIntValue = ch;
@@ -4017,7 +4035,7 @@ function isSyntaxCharacter(ch) {
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-PatternCharacter
 // But eat eager.
-pp$8.regexp_eatPatternCharacters = function(state) {
+pp$1.regexp_eatPatternCharacters = function(state) {
   var start = state.pos;
   var ch = 0;
   while ((ch = state.current()) !== -1 && !isSyntaxCharacter(ch)) {
@@ -4027,7 +4045,7 @@ pp$8.regexp_eatPatternCharacters = function(state) {
 };
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ExtendedPatternCharacter
-pp$8.regexp_eatExtendedPatternCharacter = function(state) {
+pp$1.regexp_eatExtendedPatternCharacter = function(state) {
   var ch = state.current();
   if (
     ch !== -1 &&
@@ -4048,7 +4066,7 @@ pp$8.regexp_eatExtendedPatternCharacter = function(state) {
 // GroupSpecifier ::
 //   [empty]
 //   `?` GroupName
-pp$8.regexp_groupSpecifier = function(state) {
+pp$1.regexp_groupSpecifier = function(state) {
   if (state.eat(0x3F /* ? */)) {
     if (this.regexp_eatGroupName(state)) {
       if (state.groupNames.indexOf(state.lastStringValue) !== -1) {
@@ -4064,7 +4082,7 @@ pp$8.regexp_groupSpecifier = function(state) {
 // GroupName ::
 //   `<` RegExpIdentifierName `>`
 // Note: this updates `state.lastStringValue` property with the eaten name.
-pp$8.regexp_eatGroupName = function(state) {
+pp$1.regexp_eatGroupName = function(state) {
   state.lastStringValue = "";
   if (state.eat(0x3C /* < */)) {
     if (this.regexp_eatRegExpIdentifierName(state) && state.eat(0x3E /* > */)) {
@@ -4079,12 +4097,12 @@ pp$8.regexp_eatGroupName = function(state) {
 //   RegExpIdentifierStart
 //   RegExpIdentifierName RegExpIdentifierPart
 // Note: this updates `state.lastStringValue` property with the eaten name.
-pp$8.regexp_eatRegExpIdentifierName = function(state) {
+pp$1.regexp_eatRegExpIdentifierName = function(state) {
   state.lastStringValue = "";
   if (this.regexp_eatRegExpIdentifierStart(state)) {
-    state.lastStringValue += codePointToString(state.lastIntValue);
+    state.lastStringValue += codePointToString$1(state.lastIntValue);
     while (this.regexp_eatRegExpIdentifierPart(state)) {
-      state.lastStringValue += codePointToString(state.lastIntValue);
+      state.lastStringValue += codePointToString$1(state.lastIntValue);
     }
     return true
   }
@@ -4096,7 +4114,7 @@ pp$8.regexp_eatRegExpIdentifierName = function(state) {
 //   `$`
 //   `_`
 //   `\` RegExpUnicodeEscapeSequence[+U]
-pp$8.regexp_eatRegExpIdentifierStart = function(state) {
+pp$1.regexp_eatRegExpIdentifierStart = function(state) {
   var start = state.pos;
   var forceU = this.options.ecmaVersion >= 11;
   var ch = state.current(forceU);
@@ -4124,7 +4142,7 @@ function isRegExpIdentifierStart(ch) {
 //   `\` RegExpUnicodeEscapeSequence[+U]
 //   <ZWNJ>
 //   <ZWJ>
-pp$8.regexp_eatRegExpIdentifierPart = function(state) {
+pp$1.regexp_eatRegExpIdentifierPart = function(state) {
   var start = state.pos;
   var forceU = this.options.ecmaVersion >= 11;
   var ch = state.current(forceU);
@@ -4146,7 +4164,7 @@ function isRegExpIdentifierPart(ch) {
 }
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-AtomEscape
-pp$8.regexp_eatAtomEscape = function(state) {
+pp$1.regexp_eatAtomEscape = function(state) {
   if (
     this.regexp_eatBackReference(state) ||
     this.regexp_eatCharacterClassEscape(state) ||
@@ -4164,7 +4182,7 @@ pp$8.regexp_eatAtomEscape = function(state) {
   }
   return false
 };
-pp$8.regexp_eatBackReference = function(state) {
+pp$1.regexp_eatBackReference = function(state) {
   var start = state.pos;
   if (this.regexp_eatDecimalEscape(state)) {
     var n = state.lastIntValue;
@@ -4182,7 +4200,7 @@ pp$8.regexp_eatBackReference = function(state) {
   }
   return false
 };
-pp$8.regexp_eatKGroupName = function(state) {
+pp$1.regexp_eatKGroupName = function(state) {
   if (state.eat(0x6B /* k */)) {
     if (this.regexp_eatGroupName(state)) {
       state.backReferenceNames.push(state.lastStringValue);
@@ -4194,7 +4212,7 @@ pp$8.regexp_eatKGroupName = function(state) {
 };
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-CharacterEscape
-pp$8.regexp_eatCharacterEscape = function(state) {
+pp$1.regexp_eatCharacterEscape = function(state) {
   return (
     this.regexp_eatControlEscape(state) ||
     this.regexp_eatCControlLetter(state) ||
@@ -4205,7 +4223,7 @@ pp$8.regexp_eatCharacterEscape = function(state) {
     this.regexp_eatIdentityEscape(state)
   )
 };
-pp$8.regexp_eatCControlLetter = function(state) {
+pp$1.regexp_eatCControlLetter = function(state) {
   var start = state.pos;
   if (state.eat(0x63 /* c */)) {
     if (this.regexp_eatControlLetter(state)) {
@@ -4215,7 +4233,7 @@ pp$8.regexp_eatCControlLetter = function(state) {
   }
   return false
 };
-pp$8.regexp_eatZero = function(state) {
+pp$1.regexp_eatZero = function(state) {
   if (state.current() === 0x30 /* 0 */ && !isDecimalDigit(state.lookahead())) {
     state.lastIntValue = 0;
     state.advance();
@@ -4225,7 +4243,7 @@ pp$8.regexp_eatZero = function(state) {
 };
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-ControlEscape
-pp$8.regexp_eatControlEscape = function(state) {
+pp$1.regexp_eatControlEscape = function(state) {
   var ch = state.current();
   if (ch === 0x74 /* t */) {
     state.lastIntValue = 0x09; /* \t */
@@ -4256,7 +4274,7 @@ pp$8.regexp_eatControlEscape = function(state) {
 };
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-ControlLetter
-pp$8.regexp_eatControlLetter = function(state) {
+pp$1.regexp_eatControlLetter = function(state) {
   var ch = state.current();
   if (isControlLetter(ch)) {
     state.lastIntValue = ch % 0x20;
@@ -4273,7 +4291,7 @@ function isControlLetter(ch) {
 }
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-RegExpUnicodeEscapeSequence
-pp$8.regexp_eatRegExpUnicodeEscapeSequence = function(state, forceU) {
+pp$1.regexp_eatRegExpUnicodeEscapeSequence = function(state, forceU) {
   if ( forceU === void 0 ) forceU = false;
 
   var start = state.pos;
@@ -4318,7 +4336,7 @@ function isValidUnicode(ch) {
 }
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-IdentityEscape
-pp$8.regexp_eatIdentityEscape = function(state) {
+pp$1.regexp_eatIdentityEscape = function(state) {
   if (state.switchU) {
     if (this.regexp_eatSyntaxCharacter(state)) {
       return true
@@ -4341,7 +4359,7 @@ pp$8.regexp_eatIdentityEscape = function(state) {
 };
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-DecimalEscape
-pp$8.regexp_eatDecimalEscape = function(state) {
+pp$1.regexp_eatDecimalEscape = function(state) {
   state.lastIntValue = 0;
   var ch = state.current();
   if (ch >= 0x31 /* 1 */ && ch <= 0x39 /* 9 */) {
@@ -4355,7 +4373,7 @@ pp$8.regexp_eatDecimalEscape = function(state) {
 };
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-CharacterClassEscape
-pp$8.regexp_eatCharacterClassEscape = function(state) {
+pp$1.regexp_eatCharacterClassEscape = function(state) {
   var ch = state.current();
 
   if (isCharacterClassEscape(ch)) {
@@ -4397,7 +4415,7 @@ function isCharacterClassEscape(ch) {
 // UnicodePropertyValueExpression ::
 //   UnicodePropertyName `=` UnicodePropertyValue
 //   LoneUnicodePropertyNameOrValue
-pp$8.regexp_eatUnicodePropertyValueExpression = function(state) {
+pp$1.regexp_eatUnicodePropertyValueExpression = function(state) {
   var start = state.pos;
 
   // UnicodePropertyName `=` UnicodePropertyValue
@@ -4419,24 +4437,24 @@ pp$8.regexp_eatUnicodePropertyValueExpression = function(state) {
   }
   return false
 };
-pp$8.regexp_validateUnicodePropertyNameAndValue = function(state, name, value) {
+pp$1.regexp_validateUnicodePropertyNameAndValue = function(state, name, value) {
   if (!has(state.unicodeProperties.nonBinary, name))
     { state.raise("Invalid property name"); }
   if (!state.unicodeProperties.nonBinary[name].test(value))
     { state.raise("Invalid property value"); }
 };
-pp$8.regexp_validateUnicodePropertyNameOrValue = function(state, nameOrValue) {
+pp$1.regexp_validateUnicodePropertyNameOrValue = function(state, nameOrValue) {
   if (!state.unicodeProperties.binary.test(nameOrValue))
     { state.raise("Invalid property name"); }
 };
 
 // UnicodePropertyName ::
 //   UnicodePropertyNameCharacters
-pp$8.regexp_eatUnicodePropertyName = function(state) {
+pp$1.regexp_eatUnicodePropertyName = function(state) {
   var ch = 0;
   state.lastStringValue = "";
   while (isUnicodePropertyNameCharacter(ch = state.current())) {
-    state.lastStringValue += codePointToString(ch);
+    state.lastStringValue += codePointToString$1(ch);
     state.advance();
   }
   return state.lastStringValue !== ""
@@ -4447,11 +4465,11 @@ function isUnicodePropertyNameCharacter(ch) {
 
 // UnicodePropertyValue ::
 //   UnicodePropertyValueCharacters
-pp$8.regexp_eatUnicodePropertyValue = function(state) {
+pp$1.regexp_eatUnicodePropertyValue = function(state) {
   var ch = 0;
   state.lastStringValue = "";
   while (isUnicodePropertyValueCharacter(ch = state.current())) {
-    state.lastStringValue += codePointToString(ch);
+    state.lastStringValue += codePointToString$1(ch);
     state.advance();
   }
   return state.lastStringValue !== ""
@@ -4462,12 +4480,12 @@ function isUnicodePropertyValueCharacter(ch) {
 
 // LoneUnicodePropertyNameOrValue ::
 //   UnicodePropertyValueCharacters
-pp$8.regexp_eatLoneUnicodePropertyNameOrValue = function(state) {
+pp$1.regexp_eatLoneUnicodePropertyNameOrValue = function(state) {
   return this.regexp_eatUnicodePropertyValue(state)
 };
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-CharacterClass
-pp$8.regexp_eatCharacterClass = function(state) {
+pp$1.regexp_eatCharacterClass = function(state) {
   if (state.eat(0x5B /* [ */)) {
     state.eat(0x5E /* ^ */);
     this.regexp_classRanges(state);
@@ -4483,7 +4501,7 @@ pp$8.regexp_eatCharacterClass = function(state) {
 // https://www.ecma-international.org/ecma-262/8.0/#prod-ClassRanges
 // https://www.ecma-international.org/ecma-262/8.0/#prod-NonemptyClassRanges
 // https://www.ecma-international.org/ecma-262/8.0/#prod-NonemptyClassRangesNoDash
-pp$8.regexp_classRanges = function(state) {
+pp$1.regexp_classRanges = function(state) {
   while (this.regexp_eatClassAtom(state)) {
     var left = state.lastIntValue;
     if (state.eat(0x2D /* - */) && this.regexp_eatClassAtom(state)) {
@@ -4500,7 +4518,7 @@ pp$8.regexp_classRanges = function(state) {
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-ClassAtom
 // https://www.ecma-international.org/ecma-262/8.0/#prod-ClassAtomNoDash
-pp$8.regexp_eatClassAtom = function(state) {
+pp$1.regexp_eatClassAtom = function(state) {
   var start = state.pos;
 
   if (state.eat(0x5C /* \ */)) {
@@ -4529,7 +4547,7 @@ pp$8.regexp_eatClassAtom = function(state) {
 };
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ClassEscape
-pp$8.regexp_eatClassEscape = function(state) {
+pp$1.regexp_eatClassEscape = function(state) {
   var start = state.pos;
 
   if (state.eat(0x62 /* b */)) {
@@ -4556,7 +4574,7 @@ pp$8.regexp_eatClassEscape = function(state) {
 };
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-ClassControlLetter
-pp$8.regexp_eatClassControlLetter = function(state) {
+pp$1.regexp_eatClassControlLetter = function(state) {
   var ch = state.current();
   if (isDecimalDigit(ch) || ch === 0x5F /* _ */) {
     state.lastIntValue = ch % 0x20;
@@ -4567,7 +4585,7 @@ pp$8.regexp_eatClassControlLetter = function(state) {
 };
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-HexEscapeSequence
-pp$8.regexp_eatHexEscapeSequence = function(state) {
+pp$1.regexp_eatHexEscapeSequence = function(state) {
   var start = state.pos;
   if (state.eat(0x78 /* x */)) {
     if (this.regexp_eatFixedHexDigits(state, 2)) {
@@ -4582,7 +4600,7 @@ pp$8.regexp_eatHexEscapeSequence = function(state) {
 };
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-DecimalDigits
-pp$8.regexp_eatDecimalDigits = function(state) {
+pp$1.regexp_eatDecimalDigits = function(state) {
   var start = state.pos;
   var ch = 0;
   state.lastIntValue = 0;
@@ -4597,7 +4615,7 @@ function isDecimalDigit(ch) {
 }
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-HexDigits
-pp$8.regexp_eatHexDigits = function(state) {
+pp$1.regexp_eatHexDigits = function(state) {
   var start = state.pos;
   var ch = 0;
   state.lastIntValue = 0;
@@ -4626,7 +4644,7 @@ function hexToInt(ch) {
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-annexB-LegacyOctalEscapeSequence
 // Allows only 0-377(octal) i.e. 0-255(decimal).
-pp$8.regexp_eatLegacyOctalEscapeSequence = function(state) {
+pp$1.regexp_eatLegacyOctalEscapeSequence = function(state) {
   if (this.regexp_eatOctalDigit(state)) {
     var n1 = state.lastIntValue;
     if (this.regexp_eatOctalDigit(state)) {
@@ -4645,7 +4663,7 @@ pp$8.regexp_eatLegacyOctalEscapeSequence = function(state) {
 };
 
 // https://www.ecma-international.org/ecma-262/8.0/#prod-OctalDigit
-pp$8.regexp_eatOctalDigit = function(state) {
+pp$1.regexp_eatOctalDigit = function(state) {
   var ch = state.current();
   if (isOctalDigit(ch)) {
     state.lastIntValue = ch - 0x30; /* 0 */
@@ -4662,7 +4680,7 @@ function isOctalDigit(ch) {
 // https://www.ecma-international.org/ecma-262/8.0/#prod-Hex4Digits
 // https://www.ecma-international.org/ecma-262/8.0/#prod-HexDigit
 // And HexDigit HexDigit in https://www.ecma-international.org/ecma-262/8.0/#prod-HexEscapeSequence
-pp$8.regexp_eatFixedHexDigits = function(state, length) {
+pp$1.regexp_eatFixedHexDigits = function(state, length) {
   var start = state.pos;
   state.lastIntValue = 0;
   for (var i = 0; i < length; ++i) {
@@ -4694,11 +4712,11 @@ var Token = function Token(p) {
 
 // ## Tokenizer
 
-var pp$9 = Parser.prototype;
+var pp = Parser.prototype;
 
 // Move to the next token
 
-pp$9.next = function(ignoreEscapeSequenceInKeyword) {
+pp.next = function(ignoreEscapeSequenceInKeyword) {
   if (!ignoreEscapeSequenceInKeyword && this.type.keyword && this.containsEsc)
     { this.raiseRecoverable(this.start, "Escape sequence in keyword " + this.type.keyword); }
   if (this.options.onToken)
@@ -4711,21 +4729,21 @@ pp$9.next = function(ignoreEscapeSequenceInKeyword) {
   this.nextToken();
 };
 
-pp$9.getToken = function() {
+pp.getToken = function() {
   this.next();
   return new Token(this)
 };
 
 // If we're in an ES6 environment, make parsers iterable
 if (typeof Symbol !== "undefined")
-  { pp$9[Symbol.iterator] = function() {
-    var this$1 = this;
+  { pp[Symbol.iterator] = function() {
+    var this$1$1 = this;
 
     return {
       next: function () {
-        var token = this$1.getToken();
+        var token = this$1$1.getToken();
         return {
-          done: token.type === types.eof,
+          done: token.type === types$1.eof,
           value: token
         }
       }
@@ -4738,19 +4756,19 @@ if (typeof Symbol !== "undefined")
 // Read a single token, updating the parser object's token-related
 // properties.
 
-pp$9.nextToken = function() {
+pp.nextToken = function() {
   var curContext = this.curContext();
   if (!curContext || !curContext.preserveSpace) { this.skipSpace(); }
 
   this.start = this.pos;
   if (this.options.locations) { this.startLoc = this.curPosition(); }
-  if (this.pos >= this.input.length) { return this.finishToken(types.eof) }
+  if (this.pos >= this.input.length) { return this.finishToken(types$1.eof) }
 
   if (curContext.override) { return curContext.override(this) }
   else { this.readToken(this.fullCharCodeAtPos()); }
 };
 
-pp$9.readToken = function(code) {
+pp.readToken = function(code) {
   // Identifier or keyword. '\uXXXX' sequences are allowed in
   // identifiers, so '\' also dispatches to that.
   if (isIdentifierStart(code, this.options.ecmaVersion >= 6) || code === 92 /* '\' */)
@@ -4759,14 +4777,14 @@ pp$9.readToken = function(code) {
   return this.getTokenFromCode(code)
 };
 
-pp$9.fullCharCodeAtPos = function() {
+pp.fullCharCodeAtPos = function() {
   var code = this.input.charCodeAt(this.pos);
   if (code <= 0xd7ff || code >= 0xdc00) { return code }
   var next = this.input.charCodeAt(this.pos + 1);
   return next <= 0xdbff || next >= 0xe000 ? code : (code << 10) + next - 0x35fdc00
 };
 
-pp$9.skipBlockComment = function() {
+pp.skipBlockComment = function() {
   var startLoc = this.options.onComment && this.curPosition();
   var start = this.pos, end = this.input.indexOf("*/", this.pos += 2);
   if (end === -1) { this.raise(this.pos - 2, "Unterminated comment"); }
@@ -4784,7 +4802,7 @@ pp$9.skipBlockComment = function() {
                            startLoc, this.curPosition()); }
 };
 
-pp$9.skipLineComment = function(startSkip) {
+pp.skipLineComment = function(startSkip) {
   var start = this.pos;
   var startLoc = this.options.onComment && this.curPosition();
   var ch = this.input.charCodeAt(this.pos += startSkip);
@@ -4799,7 +4817,7 @@ pp$9.skipLineComment = function(startSkip) {
 // Called at the start of the parse and after every token. Skips
 // whitespace and comments, and.
 
-pp$9.skipSpace = function() {
+pp.skipSpace = function() {
   loop: while (this.pos < this.input.length) {
     var ch = this.input.charCodeAt(this.pos);
     switch (ch) {
@@ -4844,7 +4862,7 @@ pp$9.skipSpace = function() {
 // the token, so that the next one's `start` will point at the
 // right position.
 
-pp$9.finishToken = function(type, val) {
+pp.finishToken = function(type, val) {
   this.end = this.pos;
   if (this.options.locations) { this.endLoc = this.curPosition(); }
   var prevType = this.type;
@@ -4863,62 +4881,62 @@ pp$9.finishToken = function(type, val) {
 //
 // All in the name of speed.
 //
-pp$9.readToken_dot = function() {
+pp.readToken_dot = function() {
   var next = this.input.charCodeAt(this.pos + 1);
   if (next >= 48 && next <= 57) { return this.readNumber(true) }
   var next2 = this.input.charCodeAt(this.pos + 2);
   if (this.options.ecmaVersion >= 6 && next === 46 && next2 === 46) { // 46 = dot '.'
     this.pos += 3;
-    return this.finishToken(types.ellipsis)
+    return this.finishToken(types$1.ellipsis)
   } else {
     ++this.pos;
-    return this.finishToken(types.dot)
+    return this.finishToken(types$1.dot)
   }
 };
 
-pp$9.readToken_slash = function() { // '/'
+pp.readToken_slash = function() { // '/'
   var next = this.input.charCodeAt(this.pos + 1);
   if (this.exprAllowed) { ++this.pos; return this.readRegexp() }
-  if (next === 61) { return this.finishOp(types.assign, 2) }
-  return this.finishOp(types.slash, 1)
+  if (next === 61) { return this.finishOp(types$1.assign, 2) }
+  return this.finishOp(types$1.slash, 1)
 };
 
-pp$9.readToken_mult_modulo_exp = function(code) { // '%*'
+pp.readToken_mult_modulo_exp = function(code) { // '%*'
   var next = this.input.charCodeAt(this.pos + 1);
   var size = 1;
-  var tokentype = code === 42 ? types.star : types.modulo;
+  var tokentype = code === 42 ? types$1.star : types$1.modulo;
 
   // exponentiation operator ** and **=
   if (this.options.ecmaVersion >= 7 && code === 42 && next === 42) {
     ++size;
-    tokentype = types.starstar;
+    tokentype = types$1.starstar;
     next = this.input.charCodeAt(this.pos + 2);
   }
 
-  if (next === 61) { return this.finishOp(types.assign, size + 1) }
+  if (next === 61) { return this.finishOp(types$1.assign, size + 1) }
   return this.finishOp(tokentype, size)
 };
 
-pp$9.readToken_pipe_amp = function(code) { // '|&'
+pp.readToken_pipe_amp = function(code) { // '|&'
   var next = this.input.charCodeAt(this.pos + 1);
   if (next === code) {
     if (this.options.ecmaVersion >= 12) {
       var next2 = this.input.charCodeAt(this.pos + 2);
-      if (next2 === 61) { return this.finishOp(types.assign, 3) }
+      if (next2 === 61) { return this.finishOp(types$1.assign, 3) }
     }
-    return this.finishOp(code === 124 ? types.logicalOR : types.logicalAND, 2)
+    return this.finishOp(code === 124 ? types$1.logicalOR : types$1.logicalAND, 2)
   }
-  if (next === 61) { return this.finishOp(types.assign, 2) }
-  return this.finishOp(code === 124 ? types.bitwiseOR : types.bitwiseAND, 1)
+  if (next === 61) { return this.finishOp(types$1.assign, 2) }
+  return this.finishOp(code === 124 ? types$1.bitwiseOR : types$1.bitwiseAND, 1)
 };
 
-pp$9.readToken_caret = function() { // '^'
+pp.readToken_caret = function() { // '^'
   var next = this.input.charCodeAt(this.pos + 1);
-  if (next === 61) { return this.finishOp(types.assign, 2) }
-  return this.finishOp(types.bitwiseXOR, 1)
+  if (next === 61) { return this.finishOp(types$1.assign, 2) }
+  return this.finishOp(types$1.bitwiseXOR, 1)
 };
 
-pp$9.readToken_plus_min = function(code) { // '+-'
+pp.readToken_plus_min = function(code) { // '+-'
   var next = this.input.charCodeAt(this.pos + 1);
   if (next === code) {
     if (next === 45 && !this.inModule && this.input.charCodeAt(this.pos + 2) === 62 &&
@@ -4928,19 +4946,19 @@ pp$9.readToken_plus_min = function(code) { // '+-'
       this.skipSpace();
       return this.nextToken()
     }
-    return this.finishOp(types.incDec, 2)
+    return this.finishOp(types$1.incDec, 2)
   }
-  if (next === 61) { return this.finishOp(types.assign, 2) }
-  return this.finishOp(types.plusMin, 1)
+  if (next === 61) { return this.finishOp(types$1.assign, 2) }
+  return this.finishOp(types$1.plusMin, 1)
 };
 
-pp$9.readToken_lt_gt = function(code) { // '<>'
+pp.readToken_lt_gt = function(code) { // '<>'
   var next = this.input.charCodeAt(this.pos + 1);
   var size = 1;
   if (next === code) {
     size = code === 62 && this.input.charCodeAt(this.pos + 2) === 62 ? 3 : 2;
-    if (this.input.charCodeAt(this.pos + size) === 61) { return this.finishOp(types.assign, size + 1) }
-    return this.finishOp(types.bitShift, size)
+    if (this.input.charCodeAt(this.pos + size) === 61) { return this.finishOp(types$1.assign, size + 1) }
+    return this.finishOp(types$1.bitShift, size)
   }
   if (next === 33 && code === 60 && !this.inModule && this.input.charCodeAt(this.pos + 2) === 45 &&
       this.input.charCodeAt(this.pos + 3) === 45) {
@@ -4950,53 +4968,53 @@ pp$9.readToken_lt_gt = function(code) { // '<>'
     return this.nextToken()
   }
   if (next === 61) { size = 2; }
-  return this.finishOp(types.relational, size)
+  return this.finishOp(types$1.relational, size)
 };
 
-pp$9.readToken_eq_excl = function(code) { // '=!'
+pp.readToken_eq_excl = function(code) { // '=!'
   var next = this.input.charCodeAt(this.pos + 1);
-  if (next === 61) { return this.finishOp(types.equality, this.input.charCodeAt(this.pos + 2) === 61 ? 3 : 2) }
+  if (next === 61) { return this.finishOp(types$1.equality, this.input.charCodeAt(this.pos + 2) === 61 ? 3 : 2) }
   if (code === 61 && next === 62 && this.options.ecmaVersion >= 6) { // '=>'
     this.pos += 2;
-    return this.finishToken(types.arrow)
+    return this.finishToken(types$1.arrow)
   }
-  return this.finishOp(code === 61 ? types.eq : types.prefix, 1)
+  return this.finishOp(code === 61 ? types$1.eq : types$1.prefix, 1)
 };
 
-pp$9.readToken_question = function() { // '?'
+pp.readToken_question = function() { // '?'
   var ecmaVersion = this.options.ecmaVersion;
   if (ecmaVersion >= 11) {
     var next = this.input.charCodeAt(this.pos + 1);
     if (next === 46) {
       var next2 = this.input.charCodeAt(this.pos + 2);
-      if (next2 < 48 || next2 > 57) { return this.finishOp(types.questionDot, 2) }
+      if (next2 < 48 || next2 > 57) { return this.finishOp(types$1.questionDot, 2) }
     }
     if (next === 63) {
       if (ecmaVersion >= 12) {
         var next2$1 = this.input.charCodeAt(this.pos + 2);
-        if (next2$1 === 61) { return this.finishOp(types.assign, 3) }
+        if (next2$1 === 61) { return this.finishOp(types$1.assign, 3) }
       }
-      return this.finishOp(types.coalesce, 2)
+      return this.finishOp(types$1.coalesce, 2)
     }
   }
-  return this.finishOp(types.question, 1)
+  return this.finishOp(types$1.question, 1)
 };
 
-pp$9.readToken_numberSign = function() { // '#'
+pp.readToken_numberSign = function() { // '#'
   var ecmaVersion = this.options.ecmaVersion;
   var code = 35; // '#'
   if (ecmaVersion >= 13) {
     ++this.pos;
     code = this.fullCharCodeAtPos();
     if (isIdentifierStart(code, true) || code === 92 /* '\' */) {
-      return this.finishToken(types.privateId, this.readWord1())
+      return this.finishToken(types$1.privateId, this.readWord1())
     }
   }
 
-  this.raise(this.pos, "Unexpected character '" + codePointToString$1(code) + "'");
+  this.raise(this.pos, "Unexpected character '" + codePointToString(code) + "'");
 };
 
-pp$9.getTokenFromCode = function(code) {
+pp.getTokenFromCode = function(code) {
   switch (code) {
   // The interpretation of a dot depends on whether it is followed
   // by a digit or another two dots.
@@ -5004,20 +5022,20 @@ pp$9.getTokenFromCode = function(code) {
     return this.readToken_dot()
 
   // Punctuation tokens.
-  case 40: ++this.pos; return this.finishToken(types.parenL)
-  case 41: ++this.pos; return this.finishToken(types.parenR)
-  case 59: ++this.pos; return this.finishToken(types.semi)
-  case 44: ++this.pos; return this.finishToken(types.comma)
-  case 91: ++this.pos; return this.finishToken(types.bracketL)
-  case 93: ++this.pos; return this.finishToken(types.bracketR)
-  case 123: ++this.pos; return this.finishToken(types.braceL)
-  case 125: ++this.pos; return this.finishToken(types.braceR)
-  case 58: ++this.pos; return this.finishToken(types.colon)
+  case 40: ++this.pos; return this.finishToken(types$1.parenL)
+  case 41: ++this.pos; return this.finishToken(types$1.parenR)
+  case 59: ++this.pos; return this.finishToken(types$1.semi)
+  case 44: ++this.pos; return this.finishToken(types$1.comma)
+  case 91: ++this.pos; return this.finishToken(types$1.bracketL)
+  case 93: ++this.pos; return this.finishToken(types$1.bracketR)
+  case 123: ++this.pos; return this.finishToken(types$1.braceL)
+  case 125: ++this.pos; return this.finishToken(types$1.braceR)
+  case 58: ++this.pos; return this.finishToken(types$1.colon)
 
   case 96: // '`'
     if (this.options.ecmaVersion < 6) { break }
     ++this.pos;
-    return this.finishToken(types.backQuote)
+    return this.finishToken(types$1.backQuote)
 
   case 48: // '0'
     var next = this.input.charCodeAt(this.pos + 1);
@@ -5040,7 +5058,6 @@ pp$9.getTokenFromCode = function(code) {
   // often referred to. `finishOp` simply skips the amount of
   // characters it is given as second argument, and returns a token
   // of the type given by its first argument.
-
   case 47: // '/'
     return this.readToken_slash()
 
@@ -5066,22 +5083,22 @@ pp$9.getTokenFromCode = function(code) {
     return this.readToken_question()
 
   case 126: // '~'
-    return this.finishOp(types.prefix, 1)
+    return this.finishOp(types$1.prefix, 1)
 
   case 35: // '#'
     return this.readToken_numberSign()
   }
 
-  this.raise(this.pos, "Unexpected character '" + codePointToString$1(code) + "'");
+  this.raise(this.pos, "Unexpected character '" + codePointToString(code) + "'");
 };
 
-pp$9.finishOp = function(type, size) {
+pp.finishOp = function(type, size) {
   var str = this.input.slice(this.pos, this.pos + size);
   this.pos += size;
   return this.finishToken(type, str)
 };
 
-pp$9.readRegexp = function() {
+pp.readRegexp = function() {
   var escaped, inClass, start = this.pos;
   for (;;) {
     if (this.pos >= this.input.length) { this.raise(start, "Unterminated regular expression"); }
@@ -5116,14 +5133,14 @@ pp$9.readRegexp = function() {
     // https://github.com/estree/estree/blob/a27003adf4fd7bfad44de9cef372a2eacd527b1c/es5.md#regexpliteral
   }
 
-  return this.finishToken(types.regexp, {pattern: pattern, flags: flags, value: value})
+  return this.finishToken(types$1.regexp, {pattern: pattern, flags: flags, value: value})
 };
 
 // Read an integer in the given radix. Return null if zero digits
 // were read, the integer value otherwise. When `len` is given, this
 // will return `null` unless the integer has exactly `len` digits.
 
-pp$9.readInt = function(radix, len, maybeLegacyOctalNumericLiteral) {
+pp.readInt = function(radix, len, maybeLegacyOctalNumericLiteral) {
   // `len` is used for character escape sequences. In that case, disallow separators.
   var allowSeparators = this.options.ecmaVersion >= 12 && len === undefined;
 
@@ -5177,7 +5194,7 @@ function stringToBigInt(str) {
   return BigInt(str.replace(/_/g, ""))
 }
 
-pp$9.readRadixNumber = function(radix) {
+pp.readRadixNumber = function(radix) {
   var start = this.pos;
   this.pos += 2; // 0x
   var val = this.readInt(radix);
@@ -5186,12 +5203,12 @@ pp$9.readRadixNumber = function(radix) {
     val = stringToBigInt(this.input.slice(start, this.pos));
     ++this.pos;
   } else if (isIdentifierStart(this.fullCharCodeAtPos())) { this.raise(this.pos, "Identifier directly after number"); }
-  return this.finishToken(types.num, val)
+  return this.finishToken(types$1.num, val)
 };
 
 // Read an integer, octal integer, or floating-point number.
 
-pp$9.readNumber = function(startsWithDot) {
+pp.readNumber = function(startsWithDot) {
   var start = this.pos;
   if (!startsWithDot && this.readInt(10, undefined, true) === null) { this.raise(start, "Invalid number"); }
   var octal = this.pos - start >= 2 && this.input.charCodeAt(start) === 48;
@@ -5201,7 +5218,7 @@ pp$9.readNumber = function(startsWithDot) {
     var val$1 = stringToBigInt(this.input.slice(start, this.pos));
     ++this.pos;
     if (isIdentifierStart(this.fullCharCodeAtPos())) { this.raise(this.pos, "Identifier directly after number"); }
-    return this.finishToken(types.num, val$1)
+    return this.finishToken(types$1.num, val$1)
   }
   if (octal && /[89]/.test(this.input.slice(start, this.pos))) { octal = false; }
   if (next === 46 && !octal) { // '.'
@@ -5217,12 +5234,12 @@ pp$9.readNumber = function(startsWithDot) {
   if (isIdentifierStart(this.fullCharCodeAtPos())) { this.raise(this.pos, "Identifier directly after number"); }
 
   var val = stringToNumber(this.input.slice(start, this.pos), octal);
-  return this.finishToken(types.num, val)
+  return this.finishToken(types$1.num, val)
 };
 
 // Read a string value, interpreting backslash-escapes.
 
-pp$9.readCodePoint = function() {
+pp.readCodePoint = function() {
   var ch = this.input.charCodeAt(this.pos), code;
 
   if (ch === 123) { // '{'
@@ -5237,14 +5254,14 @@ pp$9.readCodePoint = function() {
   return code
 };
 
-function codePointToString$1(code) {
+function codePointToString(code) {
   // UTF-16 Decoding
   if (code <= 0xFFFF) { return String.fromCharCode(code) }
   code -= 0x10000;
   return String.fromCharCode((code >> 10) + 0xD800, (code & 1023) + 0xDC00)
 }
 
-pp$9.readString = function(quote) {
+pp.readString = function(quote) {
   var out = "", chunkStart = ++this.pos;
   for (;;) {
     if (this.pos >= this.input.length) { this.raise(this.start, "Unterminated string constant"); }
@@ -5267,14 +5284,14 @@ pp$9.readString = function(quote) {
     }
   }
   out += this.input.slice(chunkStart, this.pos++);
-  return this.finishToken(types.string, out)
+  return this.finishToken(types$1.string, out)
 };
 
 // Reads template string tokens.
 
 var INVALID_TEMPLATE_ESCAPE_ERROR = {};
 
-pp$9.tryReadTemplateToken = function() {
+pp.tryReadTemplateToken = function() {
   this.inTemplateElement = true;
   try {
     this.readTmplToken();
@@ -5289,7 +5306,7 @@ pp$9.tryReadTemplateToken = function() {
   this.inTemplateElement = false;
 };
 
-pp$9.invalidStringToken = function(position, message) {
+pp.invalidStringToken = function(position, message) {
   if (this.inTemplateElement && this.options.ecmaVersion >= 9) {
     throw INVALID_TEMPLATE_ESCAPE_ERROR
   } else {
@@ -5297,23 +5314,23 @@ pp$9.invalidStringToken = function(position, message) {
   }
 };
 
-pp$9.readTmplToken = function() {
+pp.readTmplToken = function() {
   var out = "", chunkStart = this.pos;
   for (;;) {
     if (this.pos >= this.input.length) { this.raise(this.start, "Unterminated template"); }
     var ch = this.input.charCodeAt(this.pos);
     if (ch === 96 || ch === 36 && this.input.charCodeAt(this.pos + 1) === 123) { // '`', '${'
-      if (this.pos === this.start && (this.type === types.template || this.type === types.invalidTemplate)) {
+      if (this.pos === this.start && (this.type === types$1.template || this.type === types$1.invalidTemplate)) {
         if (ch === 36) {
           this.pos += 2;
-          return this.finishToken(types.dollarBraceL)
+          return this.finishToken(types$1.dollarBraceL)
         } else {
           ++this.pos;
-          return this.finishToken(types.backQuote)
+          return this.finishToken(types$1.backQuote)
         }
       }
       out += this.input.slice(chunkStart, this.pos);
-      return this.finishToken(types.template, out)
+      return this.finishToken(types$1.template, out)
     }
     if (ch === 92) { // '\'
       out += this.input.slice(chunkStart, this.pos);
@@ -5344,7 +5361,7 @@ pp$9.readTmplToken = function() {
 };
 
 // Reads a template token to search for the end, without validating any escape sequences
-pp$9.readInvalidTemplateToken = function() {
+pp.readInvalidTemplateToken = function() {
   for (; this.pos < this.input.length; this.pos++) {
     switch (this.input[this.pos]) {
     case "\\":
@@ -5355,10 +5372,10 @@ pp$9.readInvalidTemplateToken = function() {
       if (this.input[this.pos + 1] !== "{") {
         break
       }
-    // falls through
 
+    // falls through
     case "`":
-      return this.finishToken(types.invalidTemplate, this.input.slice(this.start, this.pos))
+      return this.finishToken(types$1.invalidTemplate, this.input.slice(this.start, this.pos))
 
     // no default
     }
@@ -5368,14 +5385,14 @@ pp$9.readInvalidTemplateToken = function() {
 
 // Used to read escaped characters
 
-pp$9.readEscapedChar = function(inTemplate) {
+pp.readEscapedChar = function(inTemplate) {
   var ch = this.input.charCodeAt(++this.pos);
   ++this.pos;
   switch (ch) {
   case 110: return "\n" // 'n' -> '\n'
   case 114: return "\r" // 'r' -> '\r'
   case 120: return String.fromCharCode(this.readHexChar(2)) // 'x'
-  case 117: return codePointToString$1(this.readCodePoint()) // 'u'
+  case 117: return codePointToString(this.readCodePoint()) // 'u'
   case 116: return "\t" // 't' -> '\t'
   case 98: return "\b" // 'b' -> '\b'
   case 118: return "\u000b" // 'v' -> '\u000b'
@@ -5433,7 +5450,7 @@ pp$9.readEscapedChar = function(inTemplate) {
 
 // Used to read character escape sequences ('\x', '\u', '\U').
 
-pp$9.readHexChar = function(len) {
+pp.readHexChar = function(len) {
   var codePos = this.pos;
   var n = this.readInt(16, len);
   if (n === null) { this.invalidStringToken(codePos, "Bad character escape sequence"); }
@@ -5446,7 +5463,7 @@ pp$9.readHexChar = function(len) {
 // Incrementally adds only escaped chars, adding other chunks as-is
 // as a micro-optimization.
 
-pp$9.readWord1 = function() {
+pp.readWord1 = function() {
   this.containsEsc = false;
   var word = "", first = true, chunkStart = this.pos;
   var astral = this.options.ecmaVersion >= 6;
@@ -5464,7 +5481,7 @@ pp$9.readWord1 = function() {
       var esc = this.readCodePoint();
       if (!(first ? isIdentifierStart : isIdentifierChar)(esc, astral))
         { this.invalidStringToken(escStart, "Invalid Unicode escape"); }
-      word += codePointToString$1(esc);
+      word += codePointToString(esc);
       chunkStart = this.pos;
     } else {
       break
@@ -5477,18 +5494,18 @@ pp$9.readWord1 = function() {
 // Read an identifier or keyword token. Will check for reserved
 // words when necessary.
 
-pp$9.readWord = function() {
+pp.readWord = function() {
   var word = this.readWord1();
-  var type = types.name;
+  var type = types$1.name;
   if (this.keywords.test(word)) {
-    type = keywords$1[word];
+    type = keywords[word];
   }
   return this.finishToken(type, word)
 };
 
 // Acorn is a tiny, fast JavaScript parser written in JavaScript.
 
-var version = "8.5.0";
+var version = "8.6.0";
 
 Parser.acorn = {
   Parser: Parser,
@@ -5499,10 +5516,10 @@ Parser.acorn = {
   getLineInfo: getLineInfo,
   Node: Node,
   TokenType: TokenType,
-  tokTypes: types,
-  keywordTypes: keywords$1,
+  tokTypes: types$1,
+  keywordTypes: keywords,
   TokContext: TokContext,
-  tokContexts: types$1,
+  tokContexts: types,
   isIdentifierChar: isIdentifierChar,
   isIdentifierStart: isIdentifierStart,
   Token: Token,
@@ -5538,4 +5555,4 @@ function tokenizer(input, options) {
   return Parser.tokenizer(input, options)
 }
 
-export { Node, Parser, Position, SourceLocation, TokContext, Token, TokenType, defaultOptions, getLineInfo, isIdentifierChar, isIdentifierStart, isNewLine, keywords$1 as keywordTypes, lineBreak, lineBreakG, nonASCIIwhitespace, parse, parseExpressionAt, types$1 as tokContexts, types as tokTypes, tokenizer, version };
+export { Node, Parser, Position, SourceLocation, TokContext, Token, TokenType, defaultOptions, getLineInfo, isIdentifierChar, isIdentifierStart, isNewLine, keywords as keywordTypes, lineBreak, lineBreakG, nonASCIIwhitespace, parse, parseExpressionAt, types as tokContexts, types$1 as tokTypes, tokenizer, version };
diff --git a/deps/acorn/acorn/dist/bin.js b/deps/acorn/acorn/dist/bin.js
index d35d6ee9909209..675cab9ac89cae 100644
--- a/deps/acorn/acorn/dist/bin.js
+++ b/deps/acorn/acorn/dist/bin.js
@@ -4,6 +4,26 @@ var path = require('path');
 var fs = require('fs');
 var acorn = require('./acorn.js');
 
+function _interopNamespace(e) {
+  if (e && e.__esModule) return e;
+  var n = Object.create(null);
+  if (e) {
+    Object.keys(e).forEach(function (k) {
+      if (k !== 'default') {
+        var d = Object.getOwnPropertyDescriptor(e, k);
+        Object.defineProperty(n, k, d.get ? d : {
+          enumerable: true,
+          get: function () { return e[k]; }
+        });
+      }
+    });
+  }
+  n["default"] = e;
+  return Object.freeze(n);
+}
+
+var acorn__namespace = /*#__PURE__*/_interopNamespace(acorn);
+
 var inputFilePaths = [], forceFileName = false, fileMode = false, silent = false, compact = false, tokenize = false;
 var options = {};
 
@@ -44,14 +64,14 @@ function run(codeList) {
     codeList.forEach(function (code, idx) {
       fileIdx = idx;
       if (!tokenize) {
-        result = acorn.parse(code, options);
+        result = acorn__namespace.parse(code, options);
         options.program = result;
       } else {
-        var tokenizer = acorn.tokenizer(code, options), token;
+        var tokenizer = acorn__namespace.tokenizer(code, options), token;
         do {
           token = tokenizer.getToken();
           result.push(token);
-        } while (token.type !== acorn.tokTypes.eof)
+        } while (token.type !== acorn__namespace.tokTypes.eof)
       }
     });
   } catch (e) {
diff --git a/deps/acorn/acorn/package.json b/deps/acorn/acorn/package.json
index 138b7873d373b3..e242a235e00c84 100644
--- a/deps/acorn/acorn/package.json
+++ b/deps/acorn/acorn/package.json
@@ -16,7 +16,7 @@
     ],
     "./package.json": "./package.json"
   },
-  "version": "8.5.0",
+  "version": "8.6.0",
   "engines": {"node": ">=0.4.0"},
   "maintainers": [
     {