diff --git a/lib/tsc.js b/lib/tsc.js
index ab79f9e91fee..74c8a3733fa6 100644
--- a/lib/tsc.js
+++ b/lib/tsc.js
@@ -69,7 +69,7 @@ var __generator = (this && this.__generator) || function (thisArg, body) {
 var ts;
 (function (ts) {
     ts.versionMajorMinor = "4.8";
-    ts.version = "4.8.3";
+    ts.version = "4.8.4";
     var NativeCollections;
     (function (NativeCollections) {
         var globals = typeof globalThis !== "undefined" ? globalThis :
@@ -25457,6 +25457,7 @@ var ts;
             case 335:
             case 336:
             case 331:
+            case 337:
                 return visitNode(cbNode, node.tagName)
                     || (typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment));
             case 350:
@@ -34938,7 +34939,7 @@ var ts;
     function withPackageId(packageInfo, r) {
         var packageId;
         if (r && packageInfo) {
-            var packageJsonContent = packageInfo.packageJsonContent;
+            var packageJsonContent = packageInfo.contents.packageJsonContent;
             if (typeof packageJsonContent.name === "string" && typeof packageJsonContent.version === "string") {
                 packageId = {
                     name: packageJsonContent.name,
@@ -36067,13 +36068,13 @@ var ts;
     function loadNodeModuleFromDirectory(extensions, candidate, onlyRecordFailures, state, considerPackageJson) {
         if (considerPackageJson === void 0) { considerPackageJson = true; }
         var packageInfo = considerPackageJson ? getPackageJsonInfo(candidate, onlyRecordFailures, state) : undefined;
-        var packageJsonContent = packageInfo && packageInfo.packageJsonContent;
-        var versionPaths = packageInfo && packageInfo.versionPaths;
+        var packageJsonContent = packageInfo && packageInfo.contents.packageJsonContent;
+        var versionPaths = packageInfo && packageInfo.contents.versionPaths;
         return withPackageId(packageInfo, loadNodeModuleFromDirectoryWorker(extensions, candidate, onlyRecordFailures, state, packageJsonContent, versionPaths));
     }
     function getEntrypointsFromPackageJsonInfo(packageJsonInfo, options, host, cache, resolveJs) {
-        if (!resolveJs && packageJsonInfo.resolvedEntrypoints !== undefined) {
-            return packageJsonInfo.resolvedEntrypoints;
+        if (!resolveJs && packageJsonInfo.contents.resolvedEntrypoints !== undefined) {
+            return packageJsonInfo.contents.resolvedEntrypoints;
         }
         var entrypoints;
         var extensions = resolveJs ? Extensions.JavaScript : Extensions.TypeScript;
@@ -36081,13 +36082,13 @@ var ts;
         var requireState = getTemporaryModuleResolutionState(cache === null || cache === void 0 ? void 0 : cache.getPackageJsonInfoCache(), host, options);
         requireState.conditions = ["node", "require", "types"];
         requireState.requestContainingDirectory = packageJsonInfo.packageDirectory;
-        var requireResolution = loadNodeModuleFromDirectoryWorker(extensions, packageJsonInfo.packageDirectory, false, requireState, packageJsonInfo.packageJsonContent, packageJsonInfo.versionPaths);
+        var requireResolution = loadNodeModuleFromDirectoryWorker(extensions, packageJsonInfo.packageDirectory, false, requireState, packageJsonInfo.contents.packageJsonContent, packageJsonInfo.contents.versionPaths);
         entrypoints = ts.append(entrypoints, requireResolution === null || requireResolution === void 0 ? void 0 : requireResolution.path);
-        if (features & NodeResolutionFeatures.Exports && packageJsonInfo.packageJsonContent.exports) {
+        if (features & NodeResolutionFeatures.Exports && packageJsonInfo.contents.packageJsonContent.exports) {
             for (var _i = 0, _a = [["node", "import", "types"], ["node", "require", "types"]]; _i < _a.length; _i++) {
                 var conditions = _a[_i];
                 var exportState = __assign(__assign({}, requireState), { failedLookupLocations: [], conditions: conditions });
-                var exportResolutions = loadEntrypointsFromExportMap(packageJsonInfo, packageJsonInfo.packageJsonContent.exports, exportState, extensions);
+                var exportResolutions = loadEntrypointsFromExportMap(packageJsonInfo, packageJsonInfo.contents.packageJsonContent.exports, exportState, extensions);
                 if (exportResolutions) {
                     for (var _b = 0, exportResolutions_1 = exportResolutions; _b < exportResolutions_1.length; _b++) {
                         var resolution = exportResolutions_1[_b];
@@ -36096,7 +36097,7 @@ var ts;
                 }
             }
         }
-        return packageJsonInfo.resolvedEntrypoints = entrypoints || false;
+        return packageJsonInfo.contents.resolvedEntrypoints = entrypoints || false;
     }
     ts.getEntrypointsFromPackageJsonInfo = getEntrypointsFromPackageJsonInfo;
     function loadEntrypointsFromExportMap(scope, exports, state, extensions) {
@@ -36192,7 +36193,9 @@ var ts;
                 if (traceEnabled)
                     trace(host, ts.Diagnostics.File_0_exists_according_to_earlier_cached_lookups, packageJsonPath);
                 state.affectingLocations.push(packageJsonPath);
-                return existing;
+                return existing.packageDirectory === packageDirectory ?
+                    existing :
+                    { packageDirectory: packageDirectory, contents: existing.contents };
             }
             else {
                 if (existing && traceEnabled)
@@ -36208,7 +36211,7 @@ var ts;
                 trace(host, ts.Diagnostics.Found_package_json_at_0, packageJsonPath);
             }
             var versionPaths = readPackageJsonTypesVersionPaths(packageJsonContent, state);
-            var result = { packageDirectory: packageDirectory, packageJsonContent: packageJsonContent, versionPaths: versionPaths, resolvedEntrypoints: undefined };
+            var result = { packageDirectory: packageDirectory, contents: { packageJsonContent: packageJsonContent, versionPaths: versionPaths, resolvedEntrypoints: undefined } };
             (_b = state.packageJsonInfoCache) === null || _b === void 0 ? void 0 : _b.setPackageJsonInfo(packageJsonPath, result);
             state.affectingLocations.push(packageJsonPath);
             return result;
@@ -36320,17 +36323,16 @@ var ts;
     }
     function loadModuleFromSelfNameReference(extensions, moduleName, directory, state, cache, redirectedReference) {
         var _a, _b;
-        var useCaseSensitiveFileNames = typeof state.host.useCaseSensitiveFileNames === "function" ? state.host.useCaseSensitiveFileNames() : state.host.useCaseSensitiveFileNames;
-        var directoryPath = ts.toPath(ts.combinePaths(directory, "dummy"), (_b = (_a = state.host).getCurrentDirectory) === null || _b === void 0 ? void 0 : _b.call(_a), ts.createGetCanonicalFileName(useCaseSensitiveFileNames === undefined ? true : useCaseSensitiveFileNames));
+        var directoryPath = ts.getNormalizedAbsolutePath(ts.combinePaths(directory, "dummy"), (_b = (_a = state.host).getCurrentDirectory) === null || _b === void 0 ? void 0 : _b.call(_a));
         var scope = getPackageScopeForPath(directoryPath, state);
-        if (!scope || !scope.packageJsonContent.exports) {
+        if (!scope || !scope.contents.packageJsonContent.exports) {
             return undefined;
         }
-        if (typeof scope.packageJsonContent.name !== "string") {
+        if (typeof scope.contents.packageJsonContent.name !== "string") {
             return undefined;
         }
         var parts = ts.getPathComponents(moduleName);
-        var nameParts = ts.getPathComponents(scope.packageJsonContent.name);
+        var nameParts = ts.getPathComponents(scope.contents.packageJsonContent.name);
         if (!ts.every(nameParts, function (p, i) { return parts[i] === p; })) {
             return undefined;
         }
@@ -36338,30 +36340,30 @@ var ts;
         return loadModuleFromExports(scope, extensions, !ts.length(trailingParts) ? "." : ".".concat(ts.directorySeparator).concat(trailingParts.join(ts.directorySeparator)), state, cache, redirectedReference);
     }
     function loadModuleFromExports(scope, extensions, subpath, state, cache, redirectedReference) {
-        if (!scope.packageJsonContent.exports) {
+        if (!scope.contents.packageJsonContent.exports) {
             return undefined;
         }
         if (subpath === ".") {
             var mainExport = void 0;
-            if (typeof scope.packageJsonContent.exports === "string" || Array.isArray(scope.packageJsonContent.exports) || (typeof scope.packageJsonContent.exports === "object" && noKeyStartsWithDot(scope.packageJsonContent.exports))) {
-                mainExport = scope.packageJsonContent.exports;
+            if (typeof scope.contents.packageJsonContent.exports === "string" || Array.isArray(scope.contents.packageJsonContent.exports) || (typeof scope.contents.packageJsonContent.exports === "object" && noKeyStartsWithDot(scope.contents.packageJsonContent.exports))) {
+                mainExport = scope.contents.packageJsonContent.exports;
             }
-            else if (ts.hasProperty(scope.packageJsonContent.exports, ".")) {
-                mainExport = scope.packageJsonContent.exports["."];
+            else if (ts.hasProperty(scope.contents.packageJsonContent.exports, ".")) {
+                mainExport = scope.contents.packageJsonContent.exports["."];
             }
             if (mainExport) {
                 var loadModuleFromTargetImportOrExport = getLoadModuleFromTargetImportOrExport(extensions, state, cache, redirectedReference, subpath, scope, false);
                 return loadModuleFromTargetImportOrExport(mainExport, "", false);
             }
         }
-        else if (allKeysStartWithDot(scope.packageJsonContent.exports)) {
-            if (typeof scope.packageJsonContent.exports !== "object") {
+        else if (allKeysStartWithDot(scope.contents.packageJsonContent.exports)) {
+            if (typeof scope.contents.packageJsonContent.exports !== "object") {
                 if (state.traceEnabled) {
                     trace(state.host, ts.Diagnostics.Export_specifier_0_does_not_exist_in_package_json_scope_at_path_1, subpath, scope.packageDirectory);
                 }
                 return toSearchResult(undefined);
             }
-            var result = loadModuleFromImportsOrExports(extensions, state, cache, redirectedReference, subpath, scope.packageJsonContent.exports, scope, false);
+            var result = loadModuleFromImportsOrExports(extensions, state, cache, redirectedReference, subpath, scope.contents.packageJsonContent.exports, scope, false);
             if (result) {
                 return result;
             }
@@ -36379,8 +36381,7 @@ var ts;
             }
             return toSearchResult(undefined);
         }
-        var useCaseSensitiveFileNames = typeof state.host.useCaseSensitiveFileNames === "function" ? state.host.useCaseSensitiveFileNames() : state.host.useCaseSensitiveFileNames;
-        var directoryPath = ts.toPath(ts.combinePaths(directory, "dummy"), (_b = (_a = state.host).getCurrentDirectory) === null || _b === void 0 ? void 0 : _b.call(_a), ts.createGetCanonicalFileName(useCaseSensitiveFileNames === undefined ? true : useCaseSensitiveFileNames));
+        var directoryPath = ts.getNormalizedAbsolutePath(ts.combinePaths(directory, "dummy"), (_b = (_a = state.host).getCurrentDirectory) === null || _b === void 0 ? void 0 : _b.call(_a));
         var scope = getPackageScopeForPath(directoryPath, state);
         if (!scope) {
             if (state.traceEnabled) {
@@ -36388,13 +36389,13 @@ var ts;
             }
             return toSearchResult(undefined);
         }
-        if (!scope.packageJsonContent.imports) {
+        if (!scope.contents.packageJsonContent.imports) {
             if (state.traceEnabled) {
                 trace(state.host, ts.Diagnostics.package_json_scope_0_has_no_imports_defined, scope.packageDirectory);
             }
             return toSearchResult(undefined);
         }
-        var result = loadModuleFromImportsOrExports(extensions, state, cache, redirectedReference, moduleName, scope.packageJsonContent.imports, scope, true);
+        var result = loadModuleFromImportsOrExports(extensions, state, cache, redirectedReference, moduleName, scope.contents.packageJsonContent.imports, scope, true);
         if (result) {
             return result;
         }
@@ -36691,20 +36692,20 @@ var ts;
                 if (fromFile) {
                     return noPackageId(fromFile);
                 }
-                var fromDirectory = loadNodeModuleFromDirectoryWorker(extensions, candidate, !nodeModulesDirectoryExists, state, packageInfo.packageJsonContent, packageInfo.versionPaths);
+                var fromDirectory = loadNodeModuleFromDirectoryWorker(extensions, candidate, !nodeModulesDirectoryExists, state, packageInfo.contents.packageJsonContent, packageInfo.contents.versionPaths);
                 return withPackageId(packageInfo, fromDirectory);
             }
         }
         var _a = parsePackageName(moduleName), packageName = _a.packageName, rest = _a.rest;
         var loader = function (extensions, candidate, onlyRecordFailures, state) {
             var _a;
-            if (packageInfo && packageInfo.packageJsonContent.exports && state.features & NodeResolutionFeatures.Exports) {
+            if (packageInfo && packageInfo.contents.packageJsonContent.exports && state.features & NodeResolutionFeatures.Exports) {
                 return (_a = loadModuleFromExports(packageInfo, extensions, ts.combinePaths(".", rest), state, cache, redirectedReference)) === null || _a === void 0 ? void 0 : _a.value;
             }
             var pathAndExtension = loadModuleFromFile(extensions, candidate, onlyRecordFailures, state) ||
-                loadNodeModuleFromDirectoryWorker(extensions, candidate, onlyRecordFailures, state, packageInfo && packageInfo.packageJsonContent, packageInfo && packageInfo.versionPaths);
+                loadNodeModuleFromDirectoryWorker(extensions, candidate, onlyRecordFailures, state, packageInfo && packageInfo.contents.packageJsonContent, packageInfo && packageInfo.contents.versionPaths);
             if (!pathAndExtension && packageInfo
-                && (packageInfo.packageJsonContent.exports === undefined || packageInfo.packageJsonContent.exports === null)
+                && (packageInfo.contents.packageJsonContent.exports === undefined || packageInfo.contents.packageJsonContent.exports === null)
                 && state.features & NodeResolutionFeatures.EsmMode) {
                 pathAndExtension = loadModuleFromFile(extensions, ts.combinePaths(candidate, "index.js"), onlyRecordFailures, state);
             }
@@ -36713,12 +36714,12 @@ var ts;
         if (rest !== "") {
             var packageDirectory = ts.combinePaths(nodeModulesDirectory, packageName);
             packageInfo = getPackageJsonInfo(packageDirectory, !nodeModulesDirectoryExists, state);
-            if (packageInfo && packageInfo.versionPaths) {
+            if (packageInfo && packageInfo.contents.versionPaths) {
                 if (state.traceEnabled) {
-                    trace(state.host, ts.Diagnostics.package_json_has_a_typesVersions_entry_0_that_matches_compiler_version_1_looking_for_a_pattern_to_match_module_name_2, packageInfo.versionPaths.version, ts.version, rest);
+                    trace(state.host, ts.Diagnostics.package_json_has_a_typesVersions_entry_0_that_matches_compiler_version_1_looking_for_a_pattern_to_match_module_name_2, packageInfo.contents.versionPaths.version, ts.version, rest);
                 }
                 var packageDirectoryExists = nodeModulesDirectoryExists && ts.directoryProbablyExists(packageDirectory, state.host);
-                var fromPaths = tryLoadModuleUsingPaths(extensions, rest, packageDirectory, packageInfo.versionPaths.paths, undefined, loader, !packageDirectoryExists, state);
+                var fromPaths = tryLoadModuleUsingPaths(extensions, rest, packageDirectory, packageInfo.contents.versionPaths.paths, undefined, loader, !packageDirectoryExists, state);
                 if (fromPaths) {
                     return fromPaths.value;
                 }
@@ -40287,6 +40288,7 @@ var ts;
         var wildcardType = createIntrinsicType(1, "any");
         var errorType = createIntrinsicType(1, "error");
         var unresolvedType = createIntrinsicType(1, "unresolved");
+        var nonInferrableAnyType = createIntrinsicType(1, "any", 65536);
         var intrinsicMarkerType = createIntrinsicType(1, "intrinsic");
         var unknownType = createIntrinsicType(2, "unknown");
         var nonNullUnknownType = createIntrinsicType(2, "unknown");
@@ -42545,7 +42547,7 @@ var ts;
                                 if (ext === ".ts" || ext === ".js" || ext === ".tsx" || ext === ".jsx") {
                                     var scope = currentSourceFile.packageJsonScope;
                                     var targetExt = ext === ".ts" ? ".mts" : ext === ".js" ? ".mjs" : undefined;
-                                    if (scope && !scope.packageJsonContent.type) {
+                                    if (scope && !scope.contents.packageJsonContent.type) {
                                         if (targetExt) {
                                             diagnosticDetails = ts.chainDiagnosticMessages(undefined, ts.Diagnostics.To_convert_this_file_to_an_ECMAScript_module_change_its_file_extension_to_0_or_add_the_field_type_Colon_module_to_1, targetExt, ts.combinePaths(scope.packageDirectory, "package.json"));
                                         }
@@ -44559,19 +44561,14 @@ var ts;
                 context.approximateLength += ts.symbolName(parameterSymbol).length + 3;
                 return parameterNode;
                 function cloneBindingName(node) {
-                    return elideInitializerAndPropertyRenamingAndSetEmitFlags(node);
-                    function elideInitializerAndPropertyRenamingAndSetEmitFlags(node) {
+                    return elideInitializerAndSetEmitFlags(node);
+                    function elideInitializerAndSetEmitFlags(node) {
                         if (context.tracker.trackSymbol && ts.isComputedPropertyName(node) && isLateBindableName(node)) {
                             trackComputedName(node.expression, context.enclosingDeclaration, context);
                         }
-                        var visited = ts.visitEachChild(node, elideInitializerAndPropertyRenamingAndSetEmitFlags, ts.nullTransformationContext, undefined, elideInitializerAndPropertyRenamingAndSetEmitFlags);
+                        var visited = ts.visitEachChild(node, elideInitializerAndSetEmitFlags, ts.nullTransformationContext, undefined, elideInitializerAndSetEmitFlags);
                         if (ts.isBindingElement(visited)) {
-                            if (visited.propertyName && ts.isIdentifier(visited.propertyName) && ts.isIdentifier(visited.name)) {
-                                visited = ts.factory.updateBindingElement(visited, visited.dotDotDotToken, undefined, visited.propertyName, undefined);
-                            }
-                            else {
-                                visited = ts.factory.updateBindingElement(visited, visited.dotDotDotToken, visited.propertyName, visited.name, undefined);
-                            }
+                            visited = ts.factory.updateBindingElement(visited, visited.dotDotDotToken, visited.propertyName, visited.name, undefined);
                         }
                         if (!ts.nodeIsSynthesized(visited)) {
                             visited = ts.factory.cloneNode(visited);
@@ -47113,7 +47110,7 @@ var ts;
             if (reportErrors && !declarationBelongsToPrivateAmbientMember(element)) {
                 reportImplicitAny(element, anyType);
             }
-            return anyType;
+            return includePatternInType ? nonInferrableAnyType : anyType;
         }
         function getTypeFromObjectBindingPattern(pattern, includePatternInType, reportErrors) {
             var members = ts.createSymbolTable();
@@ -48941,6 +48938,10 @@ var ts;
                 return mapType(type, getLowerBoundOfKeyType);
             }
             if (type.flags & 2097152) {
+                var types = type.types;
+                if (types.length === 2 && !!(types[0].flags & (4 | 8 | 64)) && types[1] === emptyTypeLiteralType) {
+                    return type;
+                }
                 return getIntersectionType(ts.sameMap(type.types, getLowerBoundOfKeyType));
             }
             return type;
@@ -57813,7 +57814,7 @@ var ts;
                     }
                     var inference = getInferenceInfoForType(target);
                     if (inference) {
-                        if (ts.getObjectFlags(source) & 262144) {
+                        if (ts.getObjectFlags(source) & 262144 || source === nonInferrableAnyType) {
                             return;
                         }
                         if (!inference.isFixed) {
@@ -68354,7 +68355,7 @@ var ts;
             checkDecorators(node);
         }
         function getEffectiveTypeArgumentAtIndex(node, typeParameters, index) {
-            if (index < typeParameters.length) {
+            if (node.typeArguments && index < node.typeArguments.length) {
                 return getTypeFromTypeNode(node.typeArguments[index]);
             }
             return getEffectiveTypeArguments(node, typeParameters)[index];
@@ -76001,7 +76002,7 @@ var ts;
                 return grammarErrorOnNode(node, ts.Diagnostics.This_use_of_import_is_invalid_import_calls_can_be_written_but_they_must_have_parentheses_and_cannot_have_type_arguments);
             }
             var nodeArguments = node.arguments;
-            if (moduleKind !== ts.ModuleKind.ESNext && moduleKind !== ts.ModuleKind.NodeNext) {
+            if (moduleKind !== ts.ModuleKind.ESNext && moduleKind !== ts.ModuleKind.NodeNext && moduleKind !== ts.ModuleKind.Node16) {
                 checkGrammarForDisallowedTrailingComma(nodeArguments);
                 if (nodeArguments.length > 1) {
                     var assertionArgument = nodeArguments[1];
@@ -97471,7 +97472,7 @@ var ts;
             state.failedLookupLocations = packageJsonLocations;
             state.affectingLocations = packageJsonLocations;
             var packageJsonScope = ts.getPackageScopeForPath(fileName, state);
-            var impliedNodeFormat = (packageJsonScope === null || packageJsonScope === void 0 ? void 0 : packageJsonScope.packageJsonContent.type) === "module" ? ts.ModuleKind.ESNext : ts.ModuleKind.CommonJS;
+            var impliedNodeFormat = (packageJsonScope === null || packageJsonScope === void 0 ? void 0 : packageJsonScope.contents.packageJsonContent.type) === "module" ? ts.ModuleKind.ESNext : ts.ModuleKind.CommonJS;
             return { impliedNodeFormat: impliedNodeFormat, packageJsonLocations: packageJsonLocations, packageJsonScope: packageJsonScope };
         }
     }
@@ -98966,7 +98967,7 @@ var ts;
             return result;
         }
         function getCreateSourceFileOptions(fileName, moduleResolutionCache, host, options) {
-            var result = getImpliedNodeFormatForFileWorker(toPath(fileName), moduleResolutionCache === null || moduleResolutionCache === void 0 ? void 0 : moduleResolutionCache.getPackageJsonInfoCache(), host, options);
+            var result = getImpliedNodeFormatForFileWorker(ts.getNormalizedAbsolutePath(fileName, currentDirectory), moduleResolutionCache === null || moduleResolutionCache === void 0 ? void 0 : moduleResolutionCache.getPackageJsonInfoCache(), host, options);
             var languageVersion = ts.getEmitScriptTarget(options);
             var setExternalModuleIndicator = ts.getSetExternalModuleIndicator(options);
             return typeof result === "object" ? __assign(__assign({}, result), { languageVersion: languageVersion, setExternalModuleIndicator: setExternalModuleIndicator }) :
@@ -102976,7 +102977,7 @@ var ts;
                 var maybeBlockedByTypesVersions = false;
                 var cachedPackageJson = (_b = (_a = host.getPackageJsonInfoCache) === null || _a === void 0 ? void 0 : _a.call(host)) === null || _b === void 0 ? void 0 : _b.getPackageJsonInfo(packageJsonPath);
                 if (typeof cachedPackageJson === "object" || cachedPackageJson === undefined && host.fileExists(packageJsonPath)) {
-                    var packageJsonContent = (cachedPackageJson === null || cachedPackageJson === void 0 ? void 0 : cachedPackageJson.packageJsonContent) || JSON.parse(host.readFile(packageJsonPath));
+                    var packageJsonContent = (cachedPackageJson === null || cachedPackageJson === void 0 ? void 0 : cachedPackageJson.contents.packageJsonContent) || JSON.parse(host.readFile(packageJsonPath));
                     var importMode = overrideMode || importingSourceFile.impliedNodeFormat;
                     if (ts.getEmitModuleResolutionKind(options) === ts.ModuleResolutionKind.Node16 || ts.getEmitModuleResolutionKind(options) === ts.ModuleResolutionKind.NodeNext) {
                         var conditions = ["node", importMode === ts.ModuleKind.ESNext ? "import" : "require", "types"];
@@ -103308,7 +103309,7 @@ var ts;
                     break;
                 case ts.ModuleKind.CommonJS:
                     if (file.packageJsonScope) {
-                        (result !== null && result !== void 0 ? result : (result = [])).push(ts.chainDiagnosticMessages(undefined, file.packageJsonScope.packageJsonContent.type ?
+                        (result !== null && result !== void 0 ? result : (result = [])).push(ts.chainDiagnosticMessages(undefined, file.packageJsonScope.contents.packageJsonContent.type ?
                             ts.Diagnostics.File_is_CommonJS_module_because_0_has_field_type_whose_value_is_not_module :
                             ts.Diagnostics.File_is_CommonJS_module_because_0_does_not_have_field_type, toFileName(ts.last(file.packageJsonLocations), fileNameConvertor)));
                     }
diff --git a/lib/tsserver.js b/lib/tsserver.js
index b696263504d6..33a0f2908cad 100644
--- a/lib/tsserver.js
+++ b/lib/tsserver.js
@@ -109,7 +109,7 @@ var ts;
     // The following is baselined as a literal template type without intervention
     /** The version of the TypeScript compiler release */
     // eslint-disable-next-line @typescript-eslint/no-inferrable-types
-    ts.version = "4.8.3";
+    ts.version = "4.8.4";
     /* @internal */
     var Comparison;
     (function (Comparison) {
@@ -31516,6 +31516,7 @@ var ts;
             case 335 /* SyntaxKind.JSDocProtectedTag */:
             case 336 /* SyntaxKind.JSDocReadonlyTag */:
             case 331 /* SyntaxKind.JSDocDeprecatedTag */:
+            case 337 /* SyntaxKind.JSDocOverrideTag */:
                 return visitNode(cbNode, node.tagName)
                     || (typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment));
             case 350 /* SyntaxKind.PartiallyEmittedExpression */:
@@ -42804,7 +42805,7 @@ var ts;
     function withPackageId(packageInfo, r) {
         var packageId;
         if (r && packageInfo) {
-            var packageJsonContent = packageInfo.packageJsonContent;
+            var packageJsonContent = packageInfo.contents.packageJsonContent;
             if (typeof packageJsonContent.name === "string" && typeof packageJsonContent.version === "string") {
                 packageId = {
                     name: packageJsonContent.name,
@@ -44123,16 +44124,16 @@ var ts;
     function loadNodeModuleFromDirectory(extensions, candidate, onlyRecordFailures, state, considerPackageJson) {
         if (considerPackageJson === void 0) { considerPackageJson = true; }
         var packageInfo = considerPackageJson ? getPackageJsonInfo(candidate, onlyRecordFailures, state) : undefined;
-        var packageJsonContent = packageInfo && packageInfo.packageJsonContent;
-        var versionPaths = packageInfo && packageInfo.versionPaths;
+        var packageJsonContent = packageInfo && packageInfo.contents.packageJsonContent;
+        var versionPaths = packageInfo && packageInfo.contents.versionPaths;
         return withPackageId(packageInfo, loadNodeModuleFromDirectoryWorker(extensions, candidate, onlyRecordFailures, state, packageJsonContent, versionPaths));
     }
     /* @internal */
     function getEntrypointsFromPackageJsonInfo(packageJsonInfo, options, host, cache, resolveJs) {
-        if (!resolveJs && packageJsonInfo.resolvedEntrypoints !== undefined) {
+        if (!resolveJs && packageJsonInfo.contents.resolvedEntrypoints !== undefined) {
             // Cached value excludes resolutions to JS files - those could be
             // cached separately, but they're used rarely.
-            return packageJsonInfo.resolvedEntrypoints;
+            return packageJsonInfo.contents.resolvedEntrypoints;
         }
         var entrypoints;
         var extensions = resolveJs ? Extensions.JavaScript : Extensions.TypeScript;
@@ -44141,13 +44142,13 @@ var ts;
         requireState.conditions = ["node", "require", "types"];
         requireState.requestContainingDirectory = packageJsonInfo.packageDirectory;
         var requireResolution = loadNodeModuleFromDirectoryWorker(extensions, packageJsonInfo.packageDirectory, 
-        /*onlyRecordFailures*/ false, requireState, packageJsonInfo.packageJsonContent, packageJsonInfo.versionPaths);
+        /*onlyRecordFailures*/ false, requireState, packageJsonInfo.contents.packageJsonContent, packageJsonInfo.contents.versionPaths);
         entrypoints = ts.append(entrypoints, requireResolution === null || requireResolution === void 0 ? void 0 : requireResolution.path);
-        if (features & NodeResolutionFeatures.Exports && packageJsonInfo.packageJsonContent.exports) {
+        if (features & NodeResolutionFeatures.Exports && packageJsonInfo.contents.packageJsonContent.exports) {
             for (var _i = 0, _a = [["node", "import", "types"], ["node", "require", "types"]]; _i < _a.length; _i++) {
                 var conditions = _a[_i];
                 var exportState = __assign(__assign({}, requireState), { failedLookupLocations: [], conditions: conditions });
-                var exportResolutions = loadEntrypointsFromExportMap(packageJsonInfo, packageJsonInfo.packageJsonContent.exports, exportState, extensions);
+                var exportResolutions = loadEntrypointsFromExportMap(packageJsonInfo, packageJsonInfo.contents.packageJsonContent.exports, exportState, extensions);
                 if (exportResolutions) {
                     for (var _b = 0, exportResolutions_1 = exportResolutions; _b < exportResolutions_1.length; _b++) {
                         var resolution = exportResolutions_1[_b];
@@ -44156,7 +44157,7 @@ var ts;
                 }
             }
         }
-        return packageJsonInfo.resolvedEntrypoints = entrypoints || false;
+        return packageJsonInfo.contents.resolvedEntrypoints = entrypoints || false;
     }
     ts.getEntrypointsFromPackageJsonInfo = getEntrypointsFromPackageJsonInfo;
     function loadEntrypointsFromExportMap(scope, exports, state, extensions) {
@@ -44260,7 +44261,9 @@ var ts;
                 if (traceEnabled)
                     trace(host, ts.Diagnostics.File_0_exists_according_to_earlier_cached_lookups, packageJsonPath);
                 state.affectingLocations.push(packageJsonPath);
-                return existing;
+                return existing.packageDirectory === packageDirectory ?
+                    existing :
+                    { packageDirectory: packageDirectory, contents: existing.contents };
             }
             else {
                 if (existing && traceEnabled)
@@ -44276,7 +44279,7 @@ var ts;
                 trace(host, ts.Diagnostics.Found_package_json_at_0, packageJsonPath);
             }
             var versionPaths = readPackageJsonTypesVersionPaths(packageJsonContent, state);
-            var result = { packageDirectory: packageDirectory, packageJsonContent: packageJsonContent, versionPaths: versionPaths, resolvedEntrypoints: undefined };
+            var result = { packageDirectory: packageDirectory, contents: { packageJsonContent: packageJsonContent, versionPaths: versionPaths, resolvedEntrypoints: undefined } };
             (_b = state.packageJsonInfoCache) === null || _b === void 0 ? void 0 : _b.setPackageJsonInfo(packageJsonPath, result);
             state.affectingLocations.push(packageJsonPath);
             return result;
@@ -44401,17 +44404,16 @@ var ts;
     }
     function loadModuleFromSelfNameReference(extensions, moduleName, directory, state, cache, redirectedReference) {
         var _a, _b;
-        var useCaseSensitiveFileNames = typeof state.host.useCaseSensitiveFileNames === "function" ? state.host.useCaseSensitiveFileNames() : state.host.useCaseSensitiveFileNames;
-        var directoryPath = ts.toPath(ts.combinePaths(directory, "dummy"), (_b = (_a = state.host).getCurrentDirectory) === null || _b === void 0 ? void 0 : _b.call(_a), ts.createGetCanonicalFileName(useCaseSensitiveFileNames === undefined ? true : useCaseSensitiveFileNames));
+        var directoryPath = ts.getNormalizedAbsolutePath(ts.combinePaths(directory, "dummy"), (_b = (_a = state.host).getCurrentDirectory) === null || _b === void 0 ? void 0 : _b.call(_a));
         var scope = getPackageScopeForPath(directoryPath, state);
-        if (!scope || !scope.packageJsonContent.exports) {
+        if (!scope || !scope.contents.packageJsonContent.exports) {
             return undefined;
         }
-        if (typeof scope.packageJsonContent.name !== "string") {
+        if (typeof scope.contents.packageJsonContent.name !== "string") {
             return undefined;
         }
         var parts = ts.getPathComponents(moduleName); // unrooted paths should have `""` as their 0th entry
-        var nameParts = ts.getPathComponents(scope.packageJsonContent.name);
+        var nameParts = ts.getPathComponents(scope.contents.packageJsonContent.name);
         if (!ts.every(nameParts, function (p, i) { return parts[i] === p; })) {
             return undefined;
         }
@@ -44419,30 +44421,30 @@ var ts;
         return loadModuleFromExports(scope, extensions, !ts.length(trailingParts) ? "." : ".".concat(ts.directorySeparator).concat(trailingParts.join(ts.directorySeparator)), state, cache, redirectedReference);
     }
     function loadModuleFromExports(scope, extensions, subpath, state, cache, redirectedReference) {
-        if (!scope.packageJsonContent.exports) {
+        if (!scope.contents.packageJsonContent.exports) {
             return undefined;
         }
         if (subpath === ".") {
             var mainExport = void 0;
-            if (typeof scope.packageJsonContent.exports === "string" || Array.isArray(scope.packageJsonContent.exports) || (typeof scope.packageJsonContent.exports === "object" && noKeyStartsWithDot(scope.packageJsonContent.exports))) {
-                mainExport = scope.packageJsonContent.exports;
+            if (typeof scope.contents.packageJsonContent.exports === "string" || Array.isArray(scope.contents.packageJsonContent.exports) || (typeof scope.contents.packageJsonContent.exports === "object" && noKeyStartsWithDot(scope.contents.packageJsonContent.exports))) {
+                mainExport = scope.contents.packageJsonContent.exports;
             }
-            else if (ts.hasProperty(scope.packageJsonContent.exports, ".")) {
-                mainExport = scope.packageJsonContent.exports["."];
+            else if (ts.hasProperty(scope.contents.packageJsonContent.exports, ".")) {
+                mainExport = scope.contents.packageJsonContent.exports["."];
             }
             if (mainExport) {
                 var loadModuleFromTargetImportOrExport = getLoadModuleFromTargetImportOrExport(extensions, state, cache, redirectedReference, subpath, scope, /*isImports*/ false);
                 return loadModuleFromTargetImportOrExport(mainExport, "", /*pattern*/ false);
             }
         }
-        else if (allKeysStartWithDot(scope.packageJsonContent.exports)) {
-            if (typeof scope.packageJsonContent.exports !== "object") {
+        else if (allKeysStartWithDot(scope.contents.packageJsonContent.exports)) {
+            if (typeof scope.contents.packageJsonContent.exports !== "object") {
                 if (state.traceEnabled) {
                     trace(state.host, ts.Diagnostics.Export_specifier_0_does_not_exist_in_package_json_scope_at_path_1, subpath, scope.packageDirectory);
                 }
                 return toSearchResult(/*value*/ undefined);
             }
-            var result = loadModuleFromImportsOrExports(extensions, state, cache, redirectedReference, subpath, scope.packageJsonContent.exports, scope, /*isImports*/ false);
+            var result = loadModuleFromImportsOrExports(extensions, state, cache, redirectedReference, subpath, scope.contents.packageJsonContent.exports, scope, /*isImports*/ false);
             if (result) {
                 return result;
             }
@@ -44460,8 +44462,7 @@ var ts;
             }
             return toSearchResult(/*value*/ undefined);
         }
-        var useCaseSensitiveFileNames = typeof state.host.useCaseSensitiveFileNames === "function" ? state.host.useCaseSensitiveFileNames() : state.host.useCaseSensitiveFileNames;
-        var directoryPath = ts.toPath(ts.combinePaths(directory, "dummy"), (_b = (_a = state.host).getCurrentDirectory) === null || _b === void 0 ? void 0 : _b.call(_a), ts.createGetCanonicalFileName(useCaseSensitiveFileNames === undefined ? true : useCaseSensitiveFileNames));
+        var directoryPath = ts.getNormalizedAbsolutePath(ts.combinePaths(directory, "dummy"), (_b = (_a = state.host).getCurrentDirectory) === null || _b === void 0 ? void 0 : _b.call(_a));
         var scope = getPackageScopeForPath(directoryPath, state);
         if (!scope) {
             if (state.traceEnabled) {
@@ -44469,13 +44470,13 @@ var ts;
             }
             return toSearchResult(/*value*/ undefined);
         }
-        if (!scope.packageJsonContent.imports) {
+        if (!scope.contents.packageJsonContent.imports) {
             if (state.traceEnabled) {
                 trace(state.host, ts.Diagnostics.package_json_scope_0_has_no_imports_defined, scope.packageDirectory);
             }
             return toSearchResult(/*value*/ undefined);
         }
-        var result = loadModuleFromImportsOrExports(extensions, state, cache, redirectedReference, moduleName, scope.packageJsonContent.imports, scope, /*isImports*/ true);
+        var result = loadModuleFromImportsOrExports(extensions, state, cache, redirectedReference, moduleName, scope.contents.packageJsonContent.imports, scope, /*isImports*/ true);
         if (result) {
             return result;
         }
@@ -44820,7 +44821,7 @@ var ts;
                 if (fromFile) {
                     return noPackageId(fromFile);
                 }
-                var fromDirectory = loadNodeModuleFromDirectoryWorker(extensions, candidate, !nodeModulesDirectoryExists, state, packageInfo.packageJsonContent, packageInfo.versionPaths);
+                var fromDirectory = loadNodeModuleFromDirectoryWorker(extensions, candidate, !nodeModulesDirectoryExists, state, packageInfo.contents.packageJsonContent, packageInfo.contents.versionPaths);
                 return withPackageId(packageInfo, fromDirectory);
             }
         }
@@ -44828,14 +44829,14 @@ var ts;
         var loader = function (extensions, candidate, onlyRecordFailures, state) {
             var _a;
             // package exports are higher priority than file/directory lookups (and, if there's exports present, blocks them)
-            if (packageInfo && packageInfo.packageJsonContent.exports && state.features & NodeResolutionFeatures.Exports) {
+            if (packageInfo && packageInfo.contents.packageJsonContent.exports && state.features & NodeResolutionFeatures.Exports) {
                 return (_a = loadModuleFromExports(packageInfo, extensions, ts.combinePaths(".", rest), state, cache, redirectedReference)) === null || _a === void 0 ? void 0 : _a.value;
             }
             var pathAndExtension = loadModuleFromFile(extensions, candidate, onlyRecordFailures, state) ||
-                loadNodeModuleFromDirectoryWorker(extensions, candidate, onlyRecordFailures, state, packageInfo && packageInfo.packageJsonContent, packageInfo && packageInfo.versionPaths);
+                loadNodeModuleFromDirectoryWorker(extensions, candidate, onlyRecordFailures, state, packageInfo && packageInfo.contents.packageJsonContent, packageInfo && packageInfo.contents.versionPaths);
             if (!pathAndExtension && packageInfo
                 // eslint-disable-next-line no-null/no-null
-                && (packageInfo.packageJsonContent.exports === undefined || packageInfo.packageJsonContent.exports === null)
+                && (packageInfo.contents.packageJsonContent.exports === undefined || packageInfo.contents.packageJsonContent.exports === null)
                 && state.features & NodeResolutionFeatures.EsmMode) {
                 // EsmMode disables index lookup in `loadNodeModuleFromDirectoryWorker` generally, however non-relative package resolutions still assume
                 // a default `index.js` entrypoint if no `main` or `exports` are present
@@ -44847,12 +44848,12 @@ var ts;
             var packageDirectory = ts.combinePaths(nodeModulesDirectory, packageName);
             // Don't use a "types" or "main" from here because we're not loading the root, but a subdirectory -- just here for the packageId and path mappings.
             packageInfo = getPackageJsonInfo(packageDirectory, !nodeModulesDirectoryExists, state);
-            if (packageInfo && packageInfo.versionPaths) {
+            if (packageInfo && packageInfo.contents.versionPaths) {
                 if (state.traceEnabled) {
-                    trace(state.host, ts.Diagnostics.package_json_has_a_typesVersions_entry_0_that_matches_compiler_version_1_looking_for_a_pattern_to_match_module_name_2, packageInfo.versionPaths.version, ts.version, rest);
+                    trace(state.host, ts.Diagnostics.package_json_has_a_typesVersions_entry_0_that_matches_compiler_version_1_looking_for_a_pattern_to_match_module_name_2, packageInfo.contents.versionPaths.version, ts.version, rest);
                 }
                 var packageDirectoryExists = nodeModulesDirectoryExists && ts.directoryProbablyExists(packageDirectory, state.host);
-                var fromPaths = tryLoadModuleUsingPaths(extensions, rest, packageDirectory, packageInfo.versionPaths.paths, /*pathPatterns*/ undefined, loader, !packageDirectoryExists, state);
+                var fromPaths = tryLoadModuleUsingPaths(extensions, rest, packageDirectory, packageInfo.contents.versionPaths.paths, /*pathPatterns*/ undefined, loader, !packageDirectoryExists, state);
                 if (fromPaths) {
                     return fromPaths.value;
                 }
@@ -49153,6 +49154,7 @@ var ts;
         var wildcardType = createIntrinsicType(1 /* TypeFlags.Any */, "any");
         var errorType = createIntrinsicType(1 /* TypeFlags.Any */, "error");
         var unresolvedType = createIntrinsicType(1 /* TypeFlags.Any */, "unresolved");
+        var nonInferrableAnyType = createIntrinsicType(1 /* TypeFlags.Any */, "any", 65536 /* ObjectFlags.ContainsWideningType */);
         var intrinsicMarkerType = createIntrinsicType(1 /* TypeFlags.Any */, "intrinsic");
         var unknownType = createIntrinsicType(2 /* TypeFlags.Unknown */, "unknown");
         var nonNullUnknownType = createIntrinsicType(2 /* TypeFlags.Unknown */, "unknown");
@@ -51754,7 +51756,7 @@ var ts;
                                 if (ext === ".ts" /* Extension.Ts */ || ext === ".js" /* Extension.Js */ || ext === ".tsx" /* Extension.Tsx */ || ext === ".jsx" /* Extension.Jsx */) {
                                     var scope = currentSourceFile.packageJsonScope;
                                     var targetExt = ext === ".ts" /* Extension.Ts */ ? ".mts" /* Extension.Mts */ : ext === ".js" /* Extension.Js */ ? ".mjs" /* Extension.Mjs */ : undefined;
-                                    if (scope && !scope.packageJsonContent.type) {
+                                    if (scope && !scope.contents.packageJsonContent.type) {
                                         if (targetExt) {
                                             diagnosticDetails = ts.chainDiagnosticMessages(
                                             /*details*/ undefined, ts.Diagnostics.To_convert_this_file_to_an_ECMAScript_module_change_its_file_extension_to_0_or_add_the_field_type_Colon_module_to_1, targetExt, ts.combinePaths(scope.packageDirectory, "package.json"));
@@ -53982,22 +53984,15 @@ var ts;
                 context.approximateLength += ts.symbolName(parameterSymbol).length + 3;
                 return parameterNode;
                 function cloneBindingName(node) {
-                    return elideInitializerAndPropertyRenamingAndSetEmitFlags(node);
-                    function elideInitializerAndPropertyRenamingAndSetEmitFlags(node) {
+                    return elideInitializerAndSetEmitFlags(node);
+                    function elideInitializerAndSetEmitFlags(node) {
                         if (context.tracker.trackSymbol && ts.isComputedPropertyName(node) && isLateBindableName(node)) {
                             trackComputedName(node.expression, context.enclosingDeclaration, context);
                         }
-                        var visited = ts.visitEachChild(node, elideInitializerAndPropertyRenamingAndSetEmitFlags, ts.nullTransformationContext, /*nodesVisitor*/ undefined, elideInitializerAndPropertyRenamingAndSetEmitFlags);
+                        var visited = ts.visitEachChild(node, elideInitializerAndSetEmitFlags, ts.nullTransformationContext, /*nodesVisitor*/ undefined, elideInitializerAndSetEmitFlags);
                         if (ts.isBindingElement(visited)) {
-                            if (visited.propertyName && ts.isIdentifier(visited.propertyName) && ts.isIdentifier(visited.name)) {
-                                visited = ts.factory.updateBindingElement(visited, visited.dotDotDotToken, 
-                                /* propertyName*/ undefined, visited.propertyName, 
-                                /*initializer*/ undefined);
-                            }
-                            else {
-                                visited = ts.factory.updateBindingElement(visited, visited.dotDotDotToken, visited.propertyName, visited.name, 
-                                /*initializer*/ undefined);
-                            }
+                            visited = ts.factory.updateBindingElement(visited, visited.dotDotDotToken, visited.propertyName, visited.name, 
+                            /*initializer*/ undefined);
                         }
                         if (!ts.nodeIsSynthesized(visited)) {
                             visited = ts.factory.cloneNode(visited);
@@ -56992,7 +56987,11 @@ var ts;
             if (reportErrors && !declarationBelongsToPrivateAmbientMember(element)) {
                 reportImplicitAny(element, anyType);
             }
-            return anyType;
+            // When we're including the pattern in the type (an indication we're obtaining a contextual type), we
+            // use a non-inferrable any type. Inference will never directly infer this type, but it is possible
+            // to infer a type that contains it, e.g. for a binding pattern like [foo] or { foo }. In such cases,
+            // widening of the binding pattern type substitutes a regular any for the non-inferrable any.
+            return includePatternInType ? nonInferrableAnyType : anyType;
         }
         // Return the type implied by an object binding pattern
         function getTypeFromObjectBindingPattern(pattern, includePatternInType, reportErrors) {
@@ -59093,6 +59092,12 @@ var ts;
                 return mapType(type, getLowerBoundOfKeyType);
             }
             if (type.flags & 2097152 /* TypeFlags.Intersection */) {
+                // Similarly to getTypeFromIntersectionTypeNode, we preserve the special string & {}, number & {},
+                // and bigint & {} intersections that are used to prevent subtype reduction in union types.
+                var types = type.types;
+                if (types.length === 2 && !!(types[0].flags & (4 /* TypeFlags.String */ | 8 /* TypeFlags.Number */ | 64 /* TypeFlags.BigInt */)) && types[1] === emptyTypeLiteralType) {
+                    return type;
+                }
                 return getIntersectionType(ts.sameMap(type.types, getLowerBoundOfKeyType));
             }
             return type;
@@ -69280,7 +69285,10 @@ var ts;
                         //
                         // This flag is infectious; if we produce Box<never> (where never is silentNeverType), Box<never> is
                         // also non-inferrable.
-                        if (ts.getObjectFlags(source) & 262144 /* ObjectFlags.NonInferrableType */) {
+                        //
+                        // As a special case, also ignore nonInferrableAnyType, which is a special form of the any type
+                        // used as a stand-in for binding elements when they are being inferred.
+                        if (ts.getObjectFlags(source) & 262144 /* ObjectFlags.NonInferrableType */ || source === nonInferrableAnyType) {
                             return;
                         }
                         if (!inference.isFixed) {
@@ -81446,7 +81454,7 @@ var ts;
             checkDecorators(node);
         }
         function getEffectiveTypeArgumentAtIndex(node, typeParameters, index) {
-            if (index < typeParameters.length) {
+            if (node.typeArguments && index < node.typeArguments.length) {
                 return getTypeFromTypeNode(node.typeArguments[index]);
             }
             return getEffectiveTypeArguments(node, typeParameters)[index];
@@ -90225,7 +90233,7 @@ var ts;
                 return grammarErrorOnNode(node, ts.Diagnostics.This_use_of_import_is_invalid_import_calls_can_be_written_but_they_must_have_parentheses_and_cannot_have_type_arguments);
             }
             var nodeArguments = node.arguments;
-            if (moduleKind !== ts.ModuleKind.ESNext && moduleKind !== ts.ModuleKind.NodeNext) {
+            if (moduleKind !== ts.ModuleKind.ESNext && moduleKind !== ts.ModuleKind.NodeNext && moduleKind !== ts.ModuleKind.Node16) {
                 // We are allowed trailing comma after proposal-import-assertions.
                 checkGrammarForDisallowedTrailingComma(nodeArguments);
                 if (nodeArguments.length > 1) {
@@ -117872,7 +117880,7 @@ var ts;
             state.failedLookupLocations = packageJsonLocations;
             state.affectingLocations = packageJsonLocations;
             var packageJsonScope = ts.getPackageScopeForPath(fileName, state);
-            var impliedNodeFormat = (packageJsonScope === null || packageJsonScope === void 0 ? void 0 : packageJsonScope.packageJsonContent.type) === "module" ? ts.ModuleKind.ESNext : ts.ModuleKind.CommonJS;
+            var impliedNodeFormat = (packageJsonScope === null || packageJsonScope === void 0 ? void 0 : packageJsonScope.contents.packageJsonContent.type) === "module" ? ts.ModuleKind.ESNext : ts.ModuleKind.CommonJS;
             return { impliedNodeFormat: impliedNodeFormat, packageJsonLocations: packageJsonLocations, packageJsonScope: packageJsonScope };
         }
     }
@@ -119603,7 +119611,7 @@ var ts;
             // It's a _little odd_ that we can't set `impliedNodeFormat` until the program step - but it's the first and only time we have a resolution cache
             // and a freshly made source file node on hand at the same time, and we need both to set the field. Persisting the resolution cache all the way
             // to the check and emit steps would be bad - so we much prefer detecting and storing the format information on the source file node upfront.
-            var result = getImpliedNodeFormatForFileWorker(toPath(fileName), moduleResolutionCache === null || moduleResolutionCache === void 0 ? void 0 : moduleResolutionCache.getPackageJsonInfoCache(), host, options);
+            var result = getImpliedNodeFormatForFileWorker(ts.getNormalizedAbsolutePath(fileName, currentDirectory), moduleResolutionCache === null || moduleResolutionCache === void 0 ? void 0 : moduleResolutionCache.getPackageJsonInfoCache(), host, options);
             var languageVersion = ts.getEmitScriptTarget(options);
             var setExternalModuleIndicator = ts.getSetExternalModuleIndicator(options);
             return typeof result === "object" ? __assign(__assign({}, result), { languageVersion: languageVersion, setExternalModuleIndicator: setExternalModuleIndicator }) :
@@ -124264,7 +124272,7 @@ var ts;
                 var maybeBlockedByTypesVersions = false;
                 var cachedPackageJson = (_b = (_a = host.getPackageJsonInfoCache) === null || _a === void 0 ? void 0 : _a.call(host)) === null || _b === void 0 ? void 0 : _b.getPackageJsonInfo(packageJsonPath);
                 if (typeof cachedPackageJson === "object" || cachedPackageJson === undefined && host.fileExists(packageJsonPath)) {
-                    var packageJsonContent = (cachedPackageJson === null || cachedPackageJson === void 0 ? void 0 : cachedPackageJson.packageJsonContent) || JSON.parse(host.readFile(packageJsonPath));
+                    var packageJsonContent = (cachedPackageJson === null || cachedPackageJson === void 0 ? void 0 : cachedPackageJson.contents.packageJsonContent) || JSON.parse(host.readFile(packageJsonPath));
                     var importMode = overrideMode || importingSourceFile.impliedNodeFormat;
                     if (ts.getEmitModuleResolutionKind(options) === ts.ModuleResolutionKind.Node16 || ts.getEmitModuleResolutionKind(options) === ts.ModuleResolutionKind.NodeNext) {
                         var conditions = ["node", importMode === ts.ModuleKind.ESNext ? "import" : "require", "types"];
@@ -124626,7 +124634,7 @@ var ts;
                 case ts.ModuleKind.CommonJS:
                     if (file.packageJsonScope) {
                         (result !== null && result !== void 0 ? result : (result = [])).push(ts.chainDiagnosticMessages(
-                        /*details*/ undefined, file.packageJsonScope.packageJsonContent.type ?
+                        /*details*/ undefined, file.packageJsonScope.contents.packageJsonContent.type ?
                             ts.Diagnostics.File_is_CommonJS_module_because_0_has_field_type_whose_value_is_not_module :
                             ts.Diagnostics.File_is_CommonJS_module_because_0_does_not_have_field_type, toFileName(ts.last(file.packageJsonLocations), fileNameConvertor)));
                     }
@@ -141362,7 +141370,7 @@ var ts;
             }
             var parent = node.parent;
             var typeChecker = program.getTypeChecker();
-            if (node.kind === 159 /* SyntaxKind.OverrideKeyword */ || (ts.isJSDocOverrideTag(node) && ts.rangeContainsPosition(node.tagName, position))) {
+            if (node.kind === 159 /* SyntaxKind.OverrideKeyword */ || (ts.isIdentifier(node) && ts.isJSDocOverrideTag(parent) && parent.tagName === node)) {
                 return getDefinitionFromOverriddenMember(typeChecker, node) || ts.emptyArray;
             }
             // Labels
@@ -178842,7 +178850,7 @@ var ts;
                         var packageDirectory = fileName.substring(0, nodeModulesPathParts.packageRootIndex);
                         var packageJsonCache = (_a = project.getModuleResolutionCache()) === null || _a === void 0 ? void 0 : _a.getPackageJsonInfoCache();
                         var compilerOptions = project.getCompilationSettings();
-                        var packageJson = ts.getPackageScopeForPath(project.toPath(packageDirectory + "/package.json"), ts.getTemporaryModuleResolutionState(packageJsonCache, project, compilerOptions));
+                        var packageJson = ts.getPackageScopeForPath(ts.getNormalizedAbsolutePath(packageDirectory + "/package.json", project.getCurrentDirectory()), ts.getTemporaryModuleResolutionState(packageJsonCache, project, compilerOptions));
                         if (!packageJson)
                             return undefined;
                         // Use fake options instead of actual compiler options to avoid following export map if the project uses node16 or nodenext -
diff --git a/lib/tsserverlibrary.js b/lib/tsserverlibrary.js
index 53b8c929ba8f..b6532d29d2c4 100644
--- a/lib/tsserverlibrary.js
+++ b/lib/tsserverlibrary.js
@@ -303,7 +303,7 @@ var ts;
     // The following is baselined as a literal template type without intervention
     /** The version of the TypeScript compiler release */
     // eslint-disable-next-line @typescript-eslint/no-inferrable-types
-    ts.version = "4.8.3";
+    ts.version = "4.8.4";
     /* @internal */
     var Comparison;
     (function (Comparison) {
@@ -31710,6 +31710,7 @@ var ts;
             case 335 /* SyntaxKind.JSDocProtectedTag */:
             case 336 /* SyntaxKind.JSDocReadonlyTag */:
             case 331 /* SyntaxKind.JSDocDeprecatedTag */:
+            case 337 /* SyntaxKind.JSDocOverrideTag */:
                 return visitNode(cbNode, node.tagName)
                     || (typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment));
             case 350 /* SyntaxKind.PartiallyEmittedExpression */:
@@ -42998,7 +42999,7 @@ var ts;
     function withPackageId(packageInfo, r) {
         var packageId;
         if (r && packageInfo) {
-            var packageJsonContent = packageInfo.packageJsonContent;
+            var packageJsonContent = packageInfo.contents.packageJsonContent;
             if (typeof packageJsonContent.name === "string" && typeof packageJsonContent.version === "string") {
                 packageId = {
                     name: packageJsonContent.name,
@@ -44317,16 +44318,16 @@ var ts;
     function loadNodeModuleFromDirectory(extensions, candidate, onlyRecordFailures, state, considerPackageJson) {
         if (considerPackageJson === void 0) { considerPackageJson = true; }
         var packageInfo = considerPackageJson ? getPackageJsonInfo(candidate, onlyRecordFailures, state) : undefined;
-        var packageJsonContent = packageInfo && packageInfo.packageJsonContent;
-        var versionPaths = packageInfo && packageInfo.versionPaths;
+        var packageJsonContent = packageInfo && packageInfo.contents.packageJsonContent;
+        var versionPaths = packageInfo && packageInfo.contents.versionPaths;
         return withPackageId(packageInfo, loadNodeModuleFromDirectoryWorker(extensions, candidate, onlyRecordFailures, state, packageJsonContent, versionPaths));
     }
     /* @internal */
     function getEntrypointsFromPackageJsonInfo(packageJsonInfo, options, host, cache, resolveJs) {
-        if (!resolveJs && packageJsonInfo.resolvedEntrypoints !== undefined) {
+        if (!resolveJs && packageJsonInfo.contents.resolvedEntrypoints !== undefined) {
             // Cached value excludes resolutions to JS files - those could be
             // cached separately, but they're used rarely.
-            return packageJsonInfo.resolvedEntrypoints;
+            return packageJsonInfo.contents.resolvedEntrypoints;
         }
         var entrypoints;
         var extensions = resolveJs ? Extensions.JavaScript : Extensions.TypeScript;
@@ -44335,13 +44336,13 @@ var ts;
         requireState.conditions = ["node", "require", "types"];
         requireState.requestContainingDirectory = packageJsonInfo.packageDirectory;
         var requireResolution = loadNodeModuleFromDirectoryWorker(extensions, packageJsonInfo.packageDirectory, 
-        /*onlyRecordFailures*/ false, requireState, packageJsonInfo.packageJsonContent, packageJsonInfo.versionPaths);
+        /*onlyRecordFailures*/ false, requireState, packageJsonInfo.contents.packageJsonContent, packageJsonInfo.contents.versionPaths);
         entrypoints = ts.append(entrypoints, requireResolution === null || requireResolution === void 0 ? void 0 : requireResolution.path);
-        if (features & NodeResolutionFeatures.Exports && packageJsonInfo.packageJsonContent.exports) {
+        if (features & NodeResolutionFeatures.Exports && packageJsonInfo.contents.packageJsonContent.exports) {
             for (var _i = 0, _a = [["node", "import", "types"], ["node", "require", "types"]]; _i < _a.length; _i++) {
                 var conditions = _a[_i];
                 var exportState = __assign(__assign({}, requireState), { failedLookupLocations: [], conditions: conditions });
-                var exportResolutions = loadEntrypointsFromExportMap(packageJsonInfo, packageJsonInfo.packageJsonContent.exports, exportState, extensions);
+                var exportResolutions = loadEntrypointsFromExportMap(packageJsonInfo, packageJsonInfo.contents.packageJsonContent.exports, exportState, extensions);
                 if (exportResolutions) {
                     for (var _b = 0, exportResolutions_1 = exportResolutions; _b < exportResolutions_1.length; _b++) {
                         var resolution = exportResolutions_1[_b];
@@ -44350,7 +44351,7 @@ var ts;
                 }
             }
         }
-        return packageJsonInfo.resolvedEntrypoints = entrypoints || false;
+        return packageJsonInfo.contents.resolvedEntrypoints = entrypoints || false;
     }
     ts.getEntrypointsFromPackageJsonInfo = getEntrypointsFromPackageJsonInfo;
     function loadEntrypointsFromExportMap(scope, exports, state, extensions) {
@@ -44454,7 +44455,9 @@ var ts;
                 if (traceEnabled)
                     trace(host, ts.Diagnostics.File_0_exists_according_to_earlier_cached_lookups, packageJsonPath);
                 state.affectingLocations.push(packageJsonPath);
-                return existing;
+                return existing.packageDirectory === packageDirectory ?
+                    existing :
+                    { packageDirectory: packageDirectory, contents: existing.contents };
             }
             else {
                 if (existing && traceEnabled)
@@ -44470,7 +44473,7 @@ var ts;
                 trace(host, ts.Diagnostics.Found_package_json_at_0, packageJsonPath);
             }
             var versionPaths = readPackageJsonTypesVersionPaths(packageJsonContent, state);
-            var result = { packageDirectory: packageDirectory, packageJsonContent: packageJsonContent, versionPaths: versionPaths, resolvedEntrypoints: undefined };
+            var result = { packageDirectory: packageDirectory, contents: { packageJsonContent: packageJsonContent, versionPaths: versionPaths, resolvedEntrypoints: undefined } };
             (_b = state.packageJsonInfoCache) === null || _b === void 0 ? void 0 : _b.setPackageJsonInfo(packageJsonPath, result);
             state.affectingLocations.push(packageJsonPath);
             return result;
@@ -44595,17 +44598,16 @@ var ts;
     }
     function loadModuleFromSelfNameReference(extensions, moduleName, directory, state, cache, redirectedReference) {
         var _a, _b;
-        var useCaseSensitiveFileNames = typeof state.host.useCaseSensitiveFileNames === "function" ? state.host.useCaseSensitiveFileNames() : state.host.useCaseSensitiveFileNames;
-        var directoryPath = ts.toPath(ts.combinePaths(directory, "dummy"), (_b = (_a = state.host).getCurrentDirectory) === null || _b === void 0 ? void 0 : _b.call(_a), ts.createGetCanonicalFileName(useCaseSensitiveFileNames === undefined ? true : useCaseSensitiveFileNames));
+        var directoryPath = ts.getNormalizedAbsolutePath(ts.combinePaths(directory, "dummy"), (_b = (_a = state.host).getCurrentDirectory) === null || _b === void 0 ? void 0 : _b.call(_a));
         var scope = getPackageScopeForPath(directoryPath, state);
-        if (!scope || !scope.packageJsonContent.exports) {
+        if (!scope || !scope.contents.packageJsonContent.exports) {
             return undefined;
         }
-        if (typeof scope.packageJsonContent.name !== "string") {
+        if (typeof scope.contents.packageJsonContent.name !== "string") {
             return undefined;
         }
         var parts = ts.getPathComponents(moduleName); // unrooted paths should have `""` as their 0th entry
-        var nameParts = ts.getPathComponents(scope.packageJsonContent.name);
+        var nameParts = ts.getPathComponents(scope.contents.packageJsonContent.name);
         if (!ts.every(nameParts, function (p, i) { return parts[i] === p; })) {
             return undefined;
         }
@@ -44613,30 +44615,30 @@ var ts;
         return loadModuleFromExports(scope, extensions, !ts.length(trailingParts) ? "." : ".".concat(ts.directorySeparator).concat(trailingParts.join(ts.directorySeparator)), state, cache, redirectedReference);
     }
     function loadModuleFromExports(scope, extensions, subpath, state, cache, redirectedReference) {
-        if (!scope.packageJsonContent.exports) {
+        if (!scope.contents.packageJsonContent.exports) {
             return undefined;
         }
         if (subpath === ".") {
             var mainExport = void 0;
-            if (typeof scope.packageJsonContent.exports === "string" || Array.isArray(scope.packageJsonContent.exports) || (typeof scope.packageJsonContent.exports === "object" && noKeyStartsWithDot(scope.packageJsonContent.exports))) {
-                mainExport = scope.packageJsonContent.exports;
+            if (typeof scope.contents.packageJsonContent.exports === "string" || Array.isArray(scope.contents.packageJsonContent.exports) || (typeof scope.contents.packageJsonContent.exports === "object" && noKeyStartsWithDot(scope.contents.packageJsonContent.exports))) {
+                mainExport = scope.contents.packageJsonContent.exports;
             }
-            else if (ts.hasProperty(scope.packageJsonContent.exports, ".")) {
-                mainExport = scope.packageJsonContent.exports["."];
+            else if (ts.hasProperty(scope.contents.packageJsonContent.exports, ".")) {
+                mainExport = scope.contents.packageJsonContent.exports["."];
             }
             if (mainExport) {
                 var loadModuleFromTargetImportOrExport = getLoadModuleFromTargetImportOrExport(extensions, state, cache, redirectedReference, subpath, scope, /*isImports*/ false);
                 return loadModuleFromTargetImportOrExport(mainExport, "", /*pattern*/ false);
             }
         }
-        else if (allKeysStartWithDot(scope.packageJsonContent.exports)) {
-            if (typeof scope.packageJsonContent.exports !== "object") {
+        else if (allKeysStartWithDot(scope.contents.packageJsonContent.exports)) {
+            if (typeof scope.contents.packageJsonContent.exports !== "object") {
                 if (state.traceEnabled) {
                     trace(state.host, ts.Diagnostics.Export_specifier_0_does_not_exist_in_package_json_scope_at_path_1, subpath, scope.packageDirectory);
                 }
                 return toSearchResult(/*value*/ undefined);
             }
-            var result = loadModuleFromImportsOrExports(extensions, state, cache, redirectedReference, subpath, scope.packageJsonContent.exports, scope, /*isImports*/ false);
+            var result = loadModuleFromImportsOrExports(extensions, state, cache, redirectedReference, subpath, scope.contents.packageJsonContent.exports, scope, /*isImports*/ false);
             if (result) {
                 return result;
             }
@@ -44654,8 +44656,7 @@ var ts;
             }
             return toSearchResult(/*value*/ undefined);
         }
-        var useCaseSensitiveFileNames = typeof state.host.useCaseSensitiveFileNames === "function" ? state.host.useCaseSensitiveFileNames() : state.host.useCaseSensitiveFileNames;
-        var directoryPath = ts.toPath(ts.combinePaths(directory, "dummy"), (_b = (_a = state.host).getCurrentDirectory) === null || _b === void 0 ? void 0 : _b.call(_a), ts.createGetCanonicalFileName(useCaseSensitiveFileNames === undefined ? true : useCaseSensitiveFileNames));
+        var directoryPath = ts.getNormalizedAbsolutePath(ts.combinePaths(directory, "dummy"), (_b = (_a = state.host).getCurrentDirectory) === null || _b === void 0 ? void 0 : _b.call(_a));
         var scope = getPackageScopeForPath(directoryPath, state);
         if (!scope) {
             if (state.traceEnabled) {
@@ -44663,13 +44664,13 @@ var ts;
             }
             return toSearchResult(/*value*/ undefined);
         }
-        if (!scope.packageJsonContent.imports) {
+        if (!scope.contents.packageJsonContent.imports) {
             if (state.traceEnabled) {
                 trace(state.host, ts.Diagnostics.package_json_scope_0_has_no_imports_defined, scope.packageDirectory);
             }
             return toSearchResult(/*value*/ undefined);
         }
-        var result = loadModuleFromImportsOrExports(extensions, state, cache, redirectedReference, moduleName, scope.packageJsonContent.imports, scope, /*isImports*/ true);
+        var result = loadModuleFromImportsOrExports(extensions, state, cache, redirectedReference, moduleName, scope.contents.packageJsonContent.imports, scope, /*isImports*/ true);
         if (result) {
             return result;
         }
@@ -45014,7 +45015,7 @@ var ts;
                 if (fromFile) {
                     return noPackageId(fromFile);
                 }
-                var fromDirectory = loadNodeModuleFromDirectoryWorker(extensions, candidate, !nodeModulesDirectoryExists, state, packageInfo.packageJsonContent, packageInfo.versionPaths);
+                var fromDirectory = loadNodeModuleFromDirectoryWorker(extensions, candidate, !nodeModulesDirectoryExists, state, packageInfo.contents.packageJsonContent, packageInfo.contents.versionPaths);
                 return withPackageId(packageInfo, fromDirectory);
             }
         }
@@ -45022,14 +45023,14 @@ var ts;
         var loader = function (extensions, candidate, onlyRecordFailures, state) {
             var _a;
             // package exports are higher priority than file/directory lookups (and, if there's exports present, blocks them)
-            if (packageInfo && packageInfo.packageJsonContent.exports && state.features & NodeResolutionFeatures.Exports) {
+            if (packageInfo && packageInfo.contents.packageJsonContent.exports && state.features & NodeResolutionFeatures.Exports) {
                 return (_a = loadModuleFromExports(packageInfo, extensions, ts.combinePaths(".", rest), state, cache, redirectedReference)) === null || _a === void 0 ? void 0 : _a.value;
             }
             var pathAndExtension = loadModuleFromFile(extensions, candidate, onlyRecordFailures, state) ||
-                loadNodeModuleFromDirectoryWorker(extensions, candidate, onlyRecordFailures, state, packageInfo && packageInfo.packageJsonContent, packageInfo && packageInfo.versionPaths);
+                loadNodeModuleFromDirectoryWorker(extensions, candidate, onlyRecordFailures, state, packageInfo && packageInfo.contents.packageJsonContent, packageInfo && packageInfo.contents.versionPaths);
             if (!pathAndExtension && packageInfo
                 // eslint-disable-next-line no-null/no-null
-                && (packageInfo.packageJsonContent.exports === undefined || packageInfo.packageJsonContent.exports === null)
+                && (packageInfo.contents.packageJsonContent.exports === undefined || packageInfo.contents.packageJsonContent.exports === null)
                 && state.features & NodeResolutionFeatures.EsmMode) {
                 // EsmMode disables index lookup in `loadNodeModuleFromDirectoryWorker` generally, however non-relative package resolutions still assume
                 // a default `index.js` entrypoint if no `main` or `exports` are present
@@ -45041,12 +45042,12 @@ var ts;
             var packageDirectory = ts.combinePaths(nodeModulesDirectory, packageName);
             // Don't use a "types" or "main" from here because we're not loading the root, but a subdirectory -- just here for the packageId and path mappings.
             packageInfo = getPackageJsonInfo(packageDirectory, !nodeModulesDirectoryExists, state);
-            if (packageInfo && packageInfo.versionPaths) {
+            if (packageInfo && packageInfo.contents.versionPaths) {
                 if (state.traceEnabled) {
-                    trace(state.host, ts.Diagnostics.package_json_has_a_typesVersions_entry_0_that_matches_compiler_version_1_looking_for_a_pattern_to_match_module_name_2, packageInfo.versionPaths.version, ts.version, rest);
+                    trace(state.host, ts.Diagnostics.package_json_has_a_typesVersions_entry_0_that_matches_compiler_version_1_looking_for_a_pattern_to_match_module_name_2, packageInfo.contents.versionPaths.version, ts.version, rest);
                 }
                 var packageDirectoryExists = nodeModulesDirectoryExists && ts.directoryProbablyExists(packageDirectory, state.host);
-                var fromPaths = tryLoadModuleUsingPaths(extensions, rest, packageDirectory, packageInfo.versionPaths.paths, /*pathPatterns*/ undefined, loader, !packageDirectoryExists, state);
+                var fromPaths = tryLoadModuleUsingPaths(extensions, rest, packageDirectory, packageInfo.contents.versionPaths.paths, /*pathPatterns*/ undefined, loader, !packageDirectoryExists, state);
                 if (fromPaths) {
                     return fromPaths.value;
                 }
@@ -49347,6 +49348,7 @@ var ts;
         var wildcardType = createIntrinsicType(1 /* TypeFlags.Any */, "any");
         var errorType = createIntrinsicType(1 /* TypeFlags.Any */, "error");
         var unresolvedType = createIntrinsicType(1 /* TypeFlags.Any */, "unresolved");
+        var nonInferrableAnyType = createIntrinsicType(1 /* TypeFlags.Any */, "any", 65536 /* ObjectFlags.ContainsWideningType */);
         var intrinsicMarkerType = createIntrinsicType(1 /* TypeFlags.Any */, "intrinsic");
         var unknownType = createIntrinsicType(2 /* TypeFlags.Unknown */, "unknown");
         var nonNullUnknownType = createIntrinsicType(2 /* TypeFlags.Unknown */, "unknown");
@@ -51948,7 +51950,7 @@ var ts;
                                 if (ext === ".ts" /* Extension.Ts */ || ext === ".js" /* Extension.Js */ || ext === ".tsx" /* Extension.Tsx */ || ext === ".jsx" /* Extension.Jsx */) {
                                     var scope = currentSourceFile.packageJsonScope;
                                     var targetExt = ext === ".ts" /* Extension.Ts */ ? ".mts" /* Extension.Mts */ : ext === ".js" /* Extension.Js */ ? ".mjs" /* Extension.Mjs */ : undefined;
-                                    if (scope && !scope.packageJsonContent.type) {
+                                    if (scope && !scope.contents.packageJsonContent.type) {
                                         if (targetExt) {
                                             diagnosticDetails = ts.chainDiagnosticMessages(
                                             /*details*/ undefined, ts.Diagnostics.To_convert_this_file_to_an_ECMAScript_module_change_its_file_extension_to_0_or_add_the_field_type_Colon_module_to_1, targetExt, ts.combinePaths(scope.packageDirectory, "package.json"));
@@ -54176,22 +54178,15 @@ var ts;
                 context.approximateLength += ts.symbolName(parameterSymbol).length + 3;
                 return parameterNode;
                 function cloneBindingName(node) {
-                    return elideInitializerAndPropertyRenamingAndSetEmitFlags(node);
-                    function elideInitializerAndPropertyRenamingAndSetEmitFlags(node) {
+                    return elideInitializerAndSetEmitFlags(node);
+                    function elideInitializerAndSetEmitFlags(node) {
                         if (context.tracker.trackSymbol && ts.isComputedPropertyName(node) && isLateBindableName(node)) {
                             trackComputedName(node.expression, context.enclosingDeclaration, context);
                         }
-                        var visited = ts.visitEachChild(node, elideInitializerAndPropertyRenamingAndSetEmitFlags, ts.nullTransformationContext, /*nodesVisitor*/ undefined, elideInitializerAndPropertyRenamingAndSetEmitFlags);
+                        var visited = ts.visitEachChild(node, elideInitializerAndSetEmitFlags, ts.nullTransformationContext, /*nodesVisitor*/ undefined, elideInitializerAndSetEmitFlags);
                         if (ts.isBindingElement(visited)) {
-                            if (visited.propertyName && ts.isIdentifier(visited.propertyName) && ts.isIdentifier(visited.name)) {
-                                visited = ts.factory.updateBindingElement(visited, visited.dotDotDotToken, 
-                                /* propertyName*/ undefined, visited.propertyName, 
-                                /*initializer*/ undefined);
-                            }
-                            else {
-                                visited = ts.factory.updateBindingElement(visited, visited.dotDotDotToken, visited.propertyName, visited.name, 
-                                /*initializer*/ undefined);
-                            }
+                            visited = ts.factory.updateBindingElement(visited, visited.dotDotDotToken, visited.propertyName, visited.name, 
+                            /*initializer*/ undefined);
                         }
                         if (!ts.nodeIsSynthesized(visited)) {
                             visited = ts.factory.cloneNode(visited);
@@ -57186,7 +57181,11 @@ var ts;
             if (reportErrors && !declarationBelongsToPrivateAmbientMember(element)) {
                 reportImplicitAny(element, anyType);
             }
-            return anyType;
+            // When we're including the pattern in the type (an indication we're obtaining a contextual type), we
+            // use a non-inferrable any type. Inference will never directly infer this type, but it is possible
+            // to infer a type that contains it, e.g. for a binding pattern like [foo] or { foo }. In such cases,
+            // widening of the binding pattern type substitutes a regular any for the non-inferrable any.
+            return includePatternInType ? nonInferrableAnyType : anyType;
         }
         // Return the type implied by an object binding pattern
         function getTypeFromObjectBindingPattern(pattern, includePatternInType, reportErrors) {
@@ -59287,6 +59286,12 @@ var ts;
                 return mapType(type, getLowerBoundOfKeyType);
             }
             if (type.flags & 2097152 /* TypeFlags.Intersection */) {
+                // Similarly to getTypeFromIntersectionTypeNode, we preserve the special string & {}, number & {},
+                // and bigint & {} intersections that are used to prevent subtype reduction in union types.
+                var types = type.types;
+                if (types.length === 2 && !!(types[0].flags & (4 /* TypeFlags.String */ | 8 /* TypeFlags.Number */ | 64 /* TypeFlags.BigInt */)) && types[1] === emptyTypeLiteralType) {
+                    return type;
+                }
                 return getIntersectionType(ts.sameMap(type.types, getLowerBoundOfKeyType));
             }
             return type;
@@ -69474,7 +69479,10 @@ var ts;
                         //
                         // This flag is infectious; if we produce Box<never> (where never is silentNeverType), Box<never> is
                         // also non-inferrable.
-                        if (ts.getObjectFlags(source) & 262144 /* ObjectFlags.NonInferrableType */) {
+                        //
+                        // As a special case, also ignore nonInferrableAnyType, which is a special form of the any type
+                        // used as a stand-in for binding elements when they are being inferred.
+                        if (ts.getObjectFlags(source) & 262144 /* ObjectFlags.NonInferrableType */ || source === nonInferrableAnyType) {
                             return;
                         }
                         if (!inference.isFixed) {
@@ -81640,7 +81648,7 @@ var ts;
             checkDecorators(node);
         }
         function getEffectiveTypeArgumentAtIndex(node, typeParameters, index) {
-            if (index < typeParameters.length) {
+            if (node.typeArguments && index < node.typeArguments.length) {
                 return getTypeFromTypeNode(node.typeArguments[index]);
             }
             return getEffectiveTypeArguments(node, typeParameters)[index];
@@ -90419,7 +90427,7 @@ var ts;
                 return grammarErrorOnNode(node, ts.Diagnostics.This_use_of_import_is_invalid_import_calls_can_be_written_but_they_must_have_parentheses_and_cannot_have_type_arguments);
             }
             var nodeArguments = node.arguments;
-            if (moduleKind !== ts.ModuleKind.ESNext && moduleKind !== ts.ModuleKind.NodeNext) {
+            if (moduleKind !== ts.ModuleKind.ESNext && moduleKind !== ts.ModuleKind.NodeNext && moduleKind !== ts.ModuleKind.Node16) {
                 // We are allowed trailing comma after proposal-import-assertions.
                 checkGrammarForDisallowedTrailingComma(nodeArguments);
                 if (nodeArguments.length > 1) {
@@ -118066,7 +118074,7 @@ var ts;
             state.failedLookupLocations = packageJsonLocations;
             state.affectingLocations = packageJsonLocations;
             var packageJsonScope = ts.getPackageScopeForPath(fileName, state);
-            var impliedNodeFormat = (packageJsonScope === null || packageJsonScope === void 0 ? void 0 : packageJsonScope.packageJsonContent.type) === "module" ? ts.ModuleKind.ESNext : ts.ModuleKind.CommonJS;
+            var impliedNodeFormat = (packageJsonScope === null || packageJsonScope === void 0 ? void 0 : packageJsonScope.contents.packageJsonContent.type) === "module" ? ts.ModuleKind.ESNext : ts.ModuleKind.CommonJS;
             return { impliedNodeFormat: impliedNodeFormat, packageJsonLocations: packageJsonLocations, packageJsonScope: packageJsonScope };
         }
     }
@@ -119797,7 +119805,7 @@ var ts;
             // It's a _little odd_ that we can't set `impliedNodeFormat` until the program step - but it's the first and only time we have a resolution cache
             // and a freshly made source file node on hand at the same time, and we need both to set the field. Persisting the resolution cache all the way
             // to the check and emit steps would be bad - so we much prefer detecting and storing the format information on the source file node upfront.
-            var result = getImpliedNodeFormatForFileWorker(toPath(fileName), moduleResolutionCache === null || moduleResolutionCache === void 0 ? void 0 : moduleResolutionCache.getPackageJsonInfoCache(), host, options);
+            var result = getImpliedNodeFormatForFileWorker(ts.getNormalizedAbsolutePath(fileName, currentDirectory), moduleResolutionCache === null || moduleResolutionCache === void 0 ? void 0 : moduleResolutionCache.getPackageJsonInfoCache(), host, options);
             var languageVersion = ts.getEmitScriptTarget(options);
             var setExternalModuleIndicator = ts.getSetExternalModuleIndicator(options);
             return typeof result === "object" ? __assign(__assign({}, result), { languageVersion: languageVersion, setExternalModuleIndicator: setExternalModuleIndicator }) :
@@ -124458,7 +124466,7 @@ var ts;
                 var maybeBlockedByTypesVersions = false;
                 var cachedPackageJson = (_b = (_a = host.getPackageJsonInfoCache) === null || _a === void 0 ? void 0 : _a.call(host)) === null || _b === void 0 ? void 0 : _b.getPackageJsonInfo(packageJsonPath);
                 if (typeof cachedPackageJson === "object" || cachedPackageJson === undefined && host.fileExists(packageJsonPath)) {
-                    var packageJsonContent = (cachedPackageJson === null || cachedPackageJson === void 0 ? void 0 : cachedPackageJson.packageJsonContent) || JSON.parse(host.readFile(packageJsonPath));
+                    var packageJsonContent = (cachedPackageJson === null || cachedPackageJson === void 0 ? void 0 : cachedPackageJson.contents.packageJsonContent) || JSON.parse(host.readFile(packageJsonPath));
                     var importMode = overrideMode || importingSourceFile.impliedNodeFormat;
                     if (ts.getEmitModuleResolutionKind(options) === ts.ModuleResolutionKind.Node16 || ts.getEmitModuleResolutionKind(options) === ts.ModuleResolutionKind.NodeNext) {
                         var conditions = ["node", importMode === ts.ModuleKind.ESNext ? "import" : "require", "types"];
@@ -124820,7 +124828,7 @@ var ts;
                 case ts.ModuleKind.CommonJS:
                     if (file.packageJsonScope) {
                         (result !== null && result !== void 0 ? result : (result = [])).push(ts.chainDiagnosticMessages(
-                        /*details*/ undefined, file.packageJsonScope.packageJsonContent.type ?
+                        /*details*/ undefined, file.packageJsonScope.contents.packageJsonContent.type ?
                             ts.Diagnostics.File_is_CommonJS_module_because_0_has_field_type_whose_value_is_not_module :
                             ts.Diagnostics.File_is_CommonJS_module_because_0_does_not_have_field_type, toFileName(ts.last(file.packageJsonLocations), fileNameConvertor)));
                     }
@@ -141975,7 +141983,7 @@ var ts;
             }
             var parent = node.parent;
             var typeChecker = program.getTypeChecker();
-            if (node.kind === 159 /* SyntaxKind.OverrideKeyword */ || (ts.isJSDocOverrideTag(node) && ts.rangeContainsPosition(node.tagName, position))) {
+            if (node.kind === 159 /* SyntaxKind.OverrideKeyword */ || (ts.isIdentifier(node) && ts.isJSDocOverrideTag(parent) && parent.tagName === node)) {
                 return getDefinitionFromOverriddenMember(typeChecker, node) || ts.emptyArray;
             }
             // Labels
@@ -179036,7 +179044,7 @@ var ts;
                         var packageDirectory = fileName.substring(0, nodeModulesPathParts.packageRootIndex);
                         var packageJsonCache = (_a = project.getModuleResolutionCache()) === null || _a === void 0 ? void 0 : _a.getPackageJsonInfoCache();
                         var compilerOptions = project.getCompilationSettings();
-                        var packageJson = ts.getPackageScopeForPath(project.toPath(packageDirectory + "/package.json"), ts.getTemporaryModuleResolutionState(packageJsonCache, project, compilerOptions));
+                        var packageJson = ts.getPackageScopeForPath(ts.getNormalizedAbsolutePath(packageDirectory + "/package.json", project.getCurrentDirectory()), ts.getTemporaryModuleResolutionState(packageJsonCache, project, compilerOptions));
                         if (!packageJson)
                             return undefined;
                         // Use fake options instead of actual compiler options to avoid following export map if the project uses node16 or nodenext -
diff --git a/lib/typescript.js b/lib/typescript.js
index 3c93c04e0e47..c0f6f3a5702b 100644
--- a/lib/typescript.js
+++ b/lib/typescript.js
@@ -294,7 +294,7 @@ var ts;
     // The following is baselined as a literal template type without intervention
     /** The version of the TypeScript compiler release */
     // eslint-disable-next-line @typescript-eslint/no-inferrable-types
-    ts.version = "4.8.3";
+    ts.version = "4.8.4";
     /* @internal */
     var Comparison;
     (function (Comparison) {
@@ -31701,6 +31701,7 @@ var ts;
             case 335 /* SyntaxKind.JSDocProtectedTag */:
             case 336 /* SyntaxKind.JSDocReadonlyTag */:
             case 331 /* SyntaxKind.JSDocDeprecatedTag */:
+            case 337 /* SyntaxKind.JSDocOverrideTag */:
                 return visitNode(cbNode, node.tagName)
                     || (typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment));
             case 350 /* SyntaxKind.PartiallyEmittedExpression */:
@@ -42989,7 +42990,7 @@ var ts;
     function withPackageId(packageInfo, r) {
         var packageId;
         if (r && packageInfo) {
-            var packageJsonContent = packageInfo.packageJsonContent;
+            var packageJsonContent = packageInfo.contents.packageJsonContent;
             if (typeof packageJsonContent.name === "string" && typeof packageJsonContent.version === "string") {
                 packageId = {
                     name: packageJsonContent.name,
@@ -44308,16 +44309,16 @@ var ts;
     function loadNodeModuleFromDirectory(extensions, candidate, onlyRecordFailures, state, considerPackageJson) {
         if (considerPackageJson === void 0) { considerPackageJson = true; }
         var packageInfo = considerPackageJson ? getPackageJsonInfo(candidate, onlyRecordFailures, state) : undefined;
-        var packageJsonContent = packageInfo && packageInfo.packageJsonContent;
-        var versionPaths = packageInfo && packageInfo.versionPaths;
+        var packageJsonContent = packageInfo && packageInfo.contents.packageJsonContent;
+        var versionPaths = packageInfo && packageInfo.contents.versionPaths;
         return withPackageId(packageInfo, loadNodeModuleFromDirectoryWorker(extensions, candidate, onlyRecordFailures, state, packageJsonContent, versionPaths));
     }
     /* @internal */
     function getEntrypointsFromPackageJsonInfo(packageJsonInfo, options, host, cache, resolveJs) {
-        if (!resolveJs && packageJsonInfo.resolvedEntrypoints !== undefined) {
+        if (!resolveJs && packageJsonInfo.contents.resolvedEntrypoints !== undefined) {
             // Cached value excludes resolutions to JS files - those could be
             // cached separately, but they're used rarely.
-            return packageJsonInfo.resolvedEntrypoints;
+            return packageJsonInfo.contents.resolvedEntrypoints;
         }
         var entrypoints;
         var extensions = resolveJs ? Extensions.JavaScript : Extensions.TypeScript;
@@ -44326,13 +44327,13 @@ var ts;
         requireState.conditions = ["node", "require", "types"];
         requireState.requestContainingDirectory = packageJsonInfo.packageDirectory;
         var requireResolution = loadNodeModuleFromDirectoryWorker(extensions, packageJsonInfo.packageDirectory, 
-        /*onlyRecordFailures*/ false, requireState, packageJsonInfo.packageJsonContent, packageJsonInfo.versionPaths);
+        /*onlyRecordFailures*/ false, requireState, packageJsonInfo.contents.packageJsonContent, packageJsonInfo.contents.versionPaths);
         entrypoints = ts.append(entrypoints, requireResolution === null || requireResolution === void 0 ? void 0 : requireResolution.path);
-        if (features & NodeResolutionFeatures.Exports && packageJsonInfo.packageJsonContent.exports) {
+        if (features & NodeResolutionFeatures.Exports && packageJsonInfo.contents.packageJsonContent.exports) {
             for (var _i = 0, _a = [["node", "import", "types"], ["node", "require", "types"]]; _i < _a.length; _i++) {
                 var conditions = _a[_i];
                 var exportState = __assign(__assign({}, requireState), { failedLookupLocations: [], conditions: conditions });
-                var exportResolutions = loadEntrypointsFromExportMap(packageJsonInfo, packageJsonInfo.packageJsonContent.exports, exportState, extensions);
+                var exportResolutions = loadEntrypointsFromExportMap(packageJsonInfo, packageJsonInfo.contents.packageJsonContent.exports, exportState, extensions);
                 if (exportResolutions) {
                     for (var _b = 0, exportResolutions_1 = exportResolutions; _b < exportResolutions_1.length; _b++) {
                         var resolution = exportResolutions_1[_b];
@@ -44341,7 +44342,7 @@ var ts;
                 }
             }
         }
-        return packageJsonInfo.resolvedEntrypoints = entrypoints || false;
+        return packageJsonInfo.contents.resolvedEntrypoints = entrypoints || false;
     }
     ts.getEntrypointsFromPackageJsonInfo = getEntrypointsFromPackageJsonInfo;
     function loadEntrypointsFromExportMap(scope, exports, state, extensions) {
@@ -44445,7 +44446,9 @@ var ts;
                 if (traceEnabled)
                     trace(host, ts.Diagnostics.File_0_exists_according_to_earlier_cached_lookups, packageJsonPath);
                 state.affectingLocations.push(packageJsonPath);
-                return existing;
+                return existing.packageDirectory === packageDirectory ?
+                    existing :
+                    { packageDirectory: packageDirectory, contents: existing.contents };
             }
             else {
                 if (existing && traceEnabled)
@@ -44461,7 +44464,7 @@ var ts;
                 trace(host, ts.Diagnostics.Found_package_json_at_0, packageJsonPath);
             }
             var versionPaths = readPackageJsonTypesVersionPaths(packageJsonContent, state);
-            var result = { packageDirectory: packageDirectory, packageJsonContent: packageJsonContent, versionPaths: versionPaths, resolvedEntrypoints: undefined };
+            var result = { packageDirectory: packageDirectory, contents: { packageJsonContent: packageJsonContent, versionPaths: versionPaths, resolvedEntrypoints: undefined } };
             (_b = state.packageJsonInfoCache) === null || _b === void 0 ? void 0 : _b.setPackageJsonInfo(packageJsonPath, result);
             state.affectingLocations.push(packageJsonPath);
             return result;
@@ -44586,17 +44589,16 @@ var ts;
     }
     function loadModuleFromSelfNameReference(extensions, moduleName, directory, state, cache, redirectedReference) {
         var _a, _b;
-        var useCaseSensitiveFileNames = typeof state.host.useCaseSensitiveFileNames === "function" ? state.host.useCaseSensitiveFileNames() : state.host.useCaseSensitiveFileNames;
-        var directoryPath = ts.toPath(ts.combinePaths(directory, "dummy"), (_b = (_a = state.host).getCurrentDirectory) === null || _b === void 0 ? void 0 : _b.call(_a), ts.createGetCanonicalFileName(useCaseSensitiveFileNames === undefined ? true : useCaseSensitiveFileNames));
+        var directoryPath = ts.getNormalizedAbsolutePath(ts.combinePaths(directory, "dummy"), (_b = (_a = state.host).getCurrentDirectory) === null || _b === void 0 ? void 0 : _b.call(_a));
         var scope = getPackageScopeForPath(directoryPath, state);
-        if (!scope || !scope.packageJsonContent.exports) {
+        if (!scope || !scope.contents.packageJsonContent.exports) {
             return undefined;
         }
-        if (typeof scope.packageJsonContent.name !== "string") {
+        if (typeof scope.contents.packageJsonContent.name !== "string") {
             return undefined;
         }
         var parts = ts.getPathComponents(moduleName); // unrooted paths should have `""` as their 0th entry
-        var nameParts = ts.getPathComponents(scope.packageJsonContent.name);
+        var nameParts = ts.getPathComponents(scope.contents.packageJsonContent.name);
         if (!ts.every(nameParts, function (p, i) { return parts[i] === p; })) {
             return undefined;
         }
@@ -44604,30 +44606,30 @@ var ts;
         return loadModuleFromExports(scope, extensions, !ts.length(trailingParts) ? "." : ".".concat(ts.directorySeparator).concat(trailingParts.join(ts.directorySeparator)), state, cache, redirectedReference);
     }
     function loadModuleFromExports(scope, extensions, subpath, state, cache, redirectedReference) {
-        if (!scope.packageJsonContent.exports) {
+        if (!scope.contents.packageJsonContent.exports) {
             return undefined;
         }
         if (subpath === ".") {
             var mainExport = void 0;
-            if (typeof scope.packageJsonContent.exports === "string" || Array.isArray(scope.packageJsonContent.exports) || (typeof scope.packageJsonContent.exports === "object" && noKeyStartsWithDot(scope.packageJsonContent.exports))) {
-                mainExport = scope.packageJsonContent.exports;
+            if (typeof scope.contents.packageJsonContent.exports === "string" || Array.isArray(scope.contents.packageJsonContent.exports) || (typeof scope.contents.packageJsonContent.exports === "object" && noKeyStartsWithDot(scope.contents.packageJsonContent.exports))) {
+                mainExport = scope.contents.packageJsonContent.exports;
             }
-            else if (ts.hasProperty(scope.packageJsonContent.exports, ".")) {
-                mainExport = scope.packageJsonContent.exports["."];
+            else if (ts.hasProperty(scope.contents.packageJsonContent.exports, ".")) {
+                mainExport = scope.contents.packageJsonContent.exports["."];
             }
             if (mainExport) {
                 var loadModuleFromTargetImportOrExport = getLoadModuleFromTargetImportOrExport(extensions, state, cache, redirectedReference, subpath, scope, /*isImports*/ false);
                 return loadModuleFromTargetImportOrExport(mainExport, "", /*pattern*/ false);
             }
         }
-        else if (allKeysStartWithDot(scope.packageJsonContent.exports)) {
-            if (typeof scope.packageJsonContent.exports !== "object") {
+        else if (allKeysStartWithDot(scope.contents.packageJsonContent.exports)) {
+            if (typeof scope.contents.packageJsonContent.exports !== "object") {
                 if (state.traceEnabled) {
                     trace(state.host, ts.Diagnostics.Export_specifier_0_does_not_exist_in_package_json_scope_at_path_1, subpath, scope.packageDirectory);
                 }
                 return toSearchResult(/*value*/ undefined);
             }
-            var result = loadModuleFromImportsOrExports(extensions, state, cache, redirectedReference, subpath, scope.packageJsonContent.exports, scope, /*isImports*/ false);
+            var result = loadModuleFromImportsOrExports(extensions, state, cache, redirectedReference, subpath, scope.contents.packageJsonContent.exports, scope, /*isImports*/ false);
             if (result) {
                 return result;
             }
@@ -44645,8 +44647,7 @@ var ts;
             }
             return toSearchResult(/*value*/ undefined);
         }
-        var useCaseSensitiveFileNames = typeof state.host.useCaseSensitiveFileNames === "function" ? state.host.useCaseSensitiveFileNames() : state.host.useCaseSensitiveFileNames;
-        var directoryPath = ts.toPath(ts.combinePaths(directory, "dummy"), (_b = (_a = state.host).getCurrentDirectory) === null || _b === void 0 ? void 0 : _b.call(_a), ts.createGetCanonicalFileName(useCaseSensitiveFileNames === undefined ? true : useCaseSensitiveFileNames));
+        var directoryPath = ts.getNormalizedAbsolutePath(ts.combinePaths(directory, "dummy"), (_b = (_a = state.host).getCurrentDirectory) === null || _b === void 0 ? void 0 : _b.call(_a));
         var scope = getPackageScopeForPath(directoryPath, state);
         if (!scope) {
             if (state.traceEnabled) {
@@ -44654,13 +44655,13 @@ var ts;
             }
             return toSearchResult(/*value*/ undefined);
         }
-        if (!scope.packageJsonContent.imports) {
+        if (!scope.contents.packageJsonContent.imports) {
             if (state.traceEnabled) {
                 trace(state.host, ts.Diagnostics.package_json_scope_0_has_no_imports_defined, scope.packageDirectory);
             }
             return toSearchResult(/*value*/ undefined);
         }
-        var result = loadModuleFromImportsOrExports(extensions, state, cache, redirectedReference, moduleName, scope.packageJsonContent.imports, scope, /*isImports*/ true);
+        var result = loadModuleFromImportsOrExports(extensions, state, cache, redirectedReference, moduleName, scope.contents.packageJsonContent.imports, scope, /*isImports*/ true);
         if (result) {
             return result;
         }
@@ -45005,7 +45006,7 @@ var ts;
                 if (fromFile) {
                     return noPackageId(fromFile);
                 }
-                var fromDirectory = loadNodeModuleFromDirectoryWorker(extensions, candidate, !nodeModulesDirectoryExists, state, packageInfo.packageJsonContent, packageInfo.versionPaths);
+                var fromDirectory = loadNodeModuleFromDirectoryWorker(extensions, candidate, !nodeModulesDirectoryExists, state, packageInfo.contents.packageJsonContent, packageInfo.contents.versionPaths);
                 return withPackageId(packageInfo, fromDirectory);
             }
         }
@@ -45013,14 +45014,14 @@ var ts;
         var loader = function (extensions, candidate, onlyRecordFailures, state) {
             var _a;
             // package exports are higher priority than file/directory lookups (and, if there's exports present, blocks them)
-            if (packageInfo && packageInfo.packageJsonContent.exports && state.features & NodeResolutionFeatures.Exports) {
+            if (packageInfo && packageInfo.contents.packageJsonContent.exports && state.features & NodeResolutionFeatures.Exports) {
                 return (_a = loadModuleFromExports(packageInfo, extensions, ts.combinePaths(".", rest), state, cache, redirectedReference)) === null || _a === void 0 ? void 0 : _a.value;
             }
             var pathAndExtension = loadModuleFromFile(extensions, candidate, onlyRecordFailures, state) ||
-                loadNodeModuleFromDirectoryWorker(extensions, candidate, onlyRecordFailures, state, packageInfo && packageInfo.packageJsonContent, packageInfo && packageInfo.versionPaths);
+                loadNodeModuleFromDirectoryWorker(extensions, candidate, onlyRecordFailures, state, packageInfo && packageInfo.contents.packageJsonContent, packageInfo && packageInfo.contents.versionPaths);
             if (!pathAndExtension && packageInfo
                 // eslint-disable-next-line no-null/no-null
-                && (packageInfo.packageJsonContent.exports === undefined || packageInfo.packageJsonContent.exports === null)
+                && (packageInfo.contents.packageJsonContent.exports === undefined || packageInfo.contents.packageJsonContent.exports === null)
                 && state.features & NodeResolutionFeatures.EsmMode) {
                 // EsmMode disables index lookup in `loadNodeModuleFromDirectoryWorker` generally, however non-relative package resolutions still assume
                 // a default `index.js` entrypoint if no `main` or `exports` are present
@@ -45032,12 +45033,12 @@ var ts;
             var packageDirectory = ts.combinePaths(nodeModulesDirectory, packageName);
             // Don't use a "types" or "main" from here because we're not loading the root, but a subdirectory -- just here for the packageId and path mappings.
             packageInfo = getPackageJsonInfo(packageDirectory, !nodeModulesDirectoryExists, state);
-            if (packageInfo && packageInfo.versionPaths) {
+            if (packageInfo && packageInfo.contents.versionPaths) {
                 if (state.traceEnabled) {
-                    trace(state.host, ts.Diagnostics.package_json_has_a_typesVersions_entry_0_that_matches_compiler_version_1_looking_for_a_pattern_to_match_module_name_2, packageInfo.versionPaths.version, ts.version, rest);
+                    trace(state.host, ts.Diagnostics.package_json_has_a_typesVersions_entry_0_that_matches_compiler_version_1_looking_for_a_pattern_to_match_module_name_2, packageInfo.contents.versionPaths.version, ts.version, rest);
                 }
                 var packageDirectoryExists = nodeModulesDirectoryExists && ts.directoryProbablyExists(packageDirectory, state.host);
-                var fromPaths = tryLoadModuleUsingPaths(extensions, rest, packageDirectory, packageInfo.versionPaths.paths, /*pathPatterns*/ undefined, loader, !packageDirectoryExists, state);
+                var fromPaths = tryLoadModuleUsingPaths(extensions, rest, packageDirectory, packageInfo.contents.versionPaths.paths, /*pathPatterns*/ undefined, loader, !packageDirectoryExists, state);
                 if (fromPaths) {
                     return fromPaths.value;
                 }
@@ -49338,6 +49339,7 @@ var ts;
         var wildcardType = createIntrinsicType(1 /* TypeFlags.Any */, "any");
         var errorType = createIntrinsicType(1 /* TypeFlags.Any */, "error");
         var unresolvedType = createIntrinsicType(1 /* TypeFlags.Any */, "unresolved");
+        var nonInferrableAnyType = createIntrinsicType(1 /* TypeFlags.Any */, "any", 65536 /* ObjectFlags.ContainsWideningType */);
         var intrinsicMarkerType = createIntrinsicType(1 /* TypeFlags.Any */, "intrinsic");
         var unknownType = createIntrinsicType(2 /* TypeFlags.Unknown */, "unknown");
         var nonNullUnknownType = createIntrinsicType(2 /* TypeFlags.Unknown */, "unknown");
@@ -51939,7 +51941,7 @@ var ts;
                                 if (ext === ".ts" /* Extension.Ts */ || ext === ".js" /* Extension.Js */ || ext === ".tsx" /* Extension.Tsx */ || ext === ".jsx" /* Extension.Jsx */) {
                                     var scope = currentSourceFile.packageJsonScope;
                                     var targetExt = ext === ".ts" /* Extension.Ts */ ? ".mts" /* Extension.Mts */ : ext === ".js" /* Extension.Js */ ? ".mjs" /* Extension.Mjs */ : undefined;
-                                    if (scope && !scope.packageJsonContent.type) {
+                                    if (scope && !scope.contents.packageJsonContent.type) {
                                         if (targetExt) {
                                             diagnosticDetails = ts.chainDiagnosticMessages(
                                             /*details*/ undefined, ts.Diagnostics.To_convert_this_file_to_an_ECMAScript_module_change_its_file_extension_to_0_or_add_the_field_type_Colon_module_to_1, targetExt, ts.combinePaths(scope.packageDirectory, "package.json"));
@@ -54167,22 +54169,15 @@ var ts;
                 context.approximateLength += ts.symbolName(parameterSymbol).length + 3;
                 return parameterNode;
                 function cloneBindingName(node) {
-                    return elideInitializerAndPropertyRenamingAndSetEmitFlags(node);
-                    function elideInitializerAndPropertyRenamingAndSetEmitFlags(node) {
+                    return elideInitializerAndSetEmitFlags(node);
+                    function elideInitializerAndSetEmitFlags(node) {
                         if (context.tracker.trackSymbol && ts.isComputedPropertyName(node) && isLateBindableName(node)) {
                             trackComputedName(node.expression, context.enclosingDeclaration, context);
                         }
-                        var visited = ts.visitEachChild(node, elideInitializerAndPropertyRenamingAndSetEmitFlags, ts.nullTransformationContext, /*nodesVisitor*/ undefined, elideInitializerAndPropertyRenamingAndSetEmitFlags);
+                        var visited = ts.visitEachChild(node, elideInitializerAndSetEmitFlags, ts.nullTransformationContext, /*nodesVisitor*/ undefined, elideInitializerAndSetEmitFlags);
                         if (ts.isBindingElement(visited)) {
-                            if (visited.propertyName && ts.isIdentifier(visited.propertyName) && ts.isIdentifier(visited.name)) {
-                                visited = ts.factory.updateBindingElement(visited, visited.dotDotDotToken, 
-                                /* propertyName*/ undefined, visited.propertyName, 
-                                /*initializer*/ undefined);
-                            }
-                            else {
-                                visited = ts.factory.updateBindingElement(visited, visited.dotDotDotToken, visited.propertyName, visited.name, 
-                                /*initializer*/ undefined);
-                            }
+                            visited = ts.factory.updateBindingElement(visited, visited.dotDotDotToken, visited.propertyName, visited.name, 
+                            /*initializer*/ undefined);
                         }
                         if (!ts.nodeIsSynthesized(visited)) {
                             visited = ts.factory.cloneNode(visited);
@@ -57177,7 +57172,11 @@ var ts;
             if (reportErrors && !declarationBelongsToPrivateAmbientMember(element)) {
                 reportImplicitAny(element, anyType);
             }
-            return anyType;
+            // When we're including the pattern in the type (an indication we're obtaining a contextual type), we
+            // use a non-inferrable any type. Inference will never directly infer this type, but it is possible
+            // to infer a type that contains it, e.g. for a binding pattern like [foo] or { foo }. In such cases,
+            // widening of the binding pattern type substitutes a regular any for the non-inferrable any.
+            return includePatternInType ? nonInferrableAnyType : anyType;
         }
         // Return the type implied by an object binding pattern
         function getTypeFromObjectBindingPattern(pattern, includePatternInType, reportErrors) {
@@ -59278,6 +59277,12 @@ var ts;
                 return mapType(type, getLowerBoundOfKeyType);
             }
             if (type.flags & 2097152 /* TypeFlags.Intersection */) {
+                // Similarly to getTypeFromIntersectionTypeNode, we preserve the special string & {}, number & {},
+                // and bigint & {} intersections that are used to prevent subtype reduction in union types.
+                var types = type.types;
+                if (types.length === 2 && !!(types[0].flags & (4 /* TypeFlags.String */ | 8 /* TypeFlags.Number */ | 64 /* TypeFlags.BigInt */)) && types[1] === emptyTypeLiteralType) {
+                    return type;
+                }
                 return getIntersectionType(ts.sameMap(type.types, getLowerBoundOfKeyType));
             }
             return type;
@@ -69465,7 +69470,10 @@ var ts;
                         //
                         // This flag is infectious; if we produce Box<never> (where never is silentNeverType), Box<never> is
                         // also non-inferrable.
-                        if (ts.getObjectFlags(source) & 262144 /* ObjectFlags.NonInferrableType */) {
+                        //
+                        // As a special case, also ignore nonInferrableAnyType, which is a special form of the any type
+                        // used as a stand-in for binding elements when they are being inferred.
+                        if (ts.getObjectFlags(source) & 262144 /* ObjectFlags.NonInferrableType */ || source === nonInferrableAnyType) {
                             return;
                         }
                         if (!inference.isFixed) {
@@ -81631,7 +81639,7 @@ var ts;
             checkDecorators(node);
         }
         function getEffectiveTypeArgumentAtIndex(node, typeParameters, index) {
-            if (index < typeParameters.length) {
+            if (node.typeArguments && index < node.typeArguments.length) {
                 return getTypeFromTypeNode(node.typeArguments[index]);
             }
             return getEffectiveTypeArguments(node, typeParameters)[index];
@@ -90410,7 +90418,7 @@ var ts;
                 return grammarErrorOnNode(node, ts.Diagnostics.This_use_of_import_is_invalid_import_calls_can_be_written_but_they_must_have_parentheses_and_cannot_have_type_arguments);
             }
             var nodeArguments = node.arguments;
-            if (moduleKind !== ts.ModuleKind.ESNext && moduleKind !== ts.ModuleKind.NodeNext) {
+            if (moduleKind !== ts.ModuleKind.ESNext && moduleKind !== ts.ModuleKind.NodeNext && moduleKind !== ts.ModuleKind.Node16) {
                 // We are allowed trailing comma after proposal-import-assertions.
                 checkGrammarForDisallowedTrailingComma(nodeArguments);
                 if (nodeArguments.length > 1) {
@@ -118057,7 +118065,7 @@ var ts;
             state.failedLookupLocations = packageJsonLocations;
             state.affectingLocations = packageJsonLocations;
             var packageJsonScope = ts.getPackageScopeForPath(fileName, state);
-            var impliedNodeFormat = (packageJsonScope === null || packageJsonScope === void 0 ? void 0 : packageJsonScope.packageJsonContent.type) === "module" ? ts.ModuleKind.ESNext : ts.ModuleKind.CommonJS;
+            var impliedNodeFormat = (packageJsonScope === null || packageJsonScope === void 0 ? void 0 : packageJsonScope.contents.packageJsonContent.type) === "module" ? ts.ModuleKind.ESNext : ts.ModuleKind.CommonJS;
             return { impliedNodeFormat: impliedNodeFormat, packageJsonLocations: packageJsonLocations, packageJsonScope: packageJsonScope };
         }
     }
@@ -119788,7 +119796,7 @@ var ts;
             // It's a _little odd_ that we can't set `impliedNodeFormat` until the program step - but it's the first and only time we have a resolution cache
             // and a freshly made source file node on hand at the same time, and we need both to set the field. Persisting the resolution cache all the way
             // to the check and emit steps would be bad - so we much prefer detecting and storing the format information on the source file node upfront.
-            var result = getImpliedNodeFormatForFileWorker(toPath(fileName), moduleResolutionCache === null || moduleResolutionCache === void 0 ? void 0 : moduleResolutionCache.getPackageJsonInfoCache(), host, options);
+            var result = getImpliedNodeFormatForFileWorker(ts.getNormalizedAbsolutePath(fileName, currentDirectory), moduleResolutionCache === null || moduleResolutionCache === void 0 ? void 0 : moduleResolutionCache.getPackageJsonInfoCache(), host, options);
             var languageVersion = ts.getEmitScriptTarget(options);
             var setExternalModuleIndicator = ts.getSetExternalModuleIndicator(options);
             return typeof result === "object" ? __assign(__assign({}, result), { languageVersion: languageVersion, setExternalModuleIndicator: setExternalModuleIndicator }) :
@@ -124449,7 +124457,7 @@ var ts;
                 var maybeBlockedByTypesVersions = false;
                 var cachedPackageJson = (_b = (_a = host.getPackageJsonInfoCache) === null || _a === void 0 ? void 0 : _a.call(host)) === null || _b === void 0 ? void 0 : _b.getPackageJsonInfo(packageJsonPath);
                 if (typeof cachedPackageJson === "object" || cachedPackageJson === undefined && host.fileExists(packageJsonPath)) {
-                    var packageJsonContent = (cachedPackageJson === null || cachedPackageJson === void 0 ? void 0 : cachedPackageJson.packageJsonContent) || JSON.parse(host.readFile(packageJsonPath));
+                    var packageJsonContent = (cachedPackageJson === null || cachedPackageJson === void 0 ? void 0 : cachedPackageJson.contents.packageJsonContent) || JSON.parse(host.readFile(packageJsonPath));
                     var importMode = overrideMode || importingSourceFile.impliedNodeFormat;
                     if (ts.getEmitModuleResolutionKind(options) === ts.ModuleResolutionKind.Node16 || ts.getEmitModuleResolutionKind(options) === ts.ModuleResolutionKind.NodeNext) {
                         var conditions = ["node", importMode === ts.ModuleKind.ESNext ? "import" : "require", "types"];
@@ -124811,7 +124819,7 @@ var ts;
                 case ts.ModuleKind.CommonJS:
                     if (file.packageJsonScope) {
                         (result !== null && result !== void 0 ? result : (result = [])).push(ts.chainDiagnosticMessages(
-                        /*details*/ undefined, file.packageJsonScope.packageJsonContent.type ?
+                        /*details*/ undefined, file.packageJsonScope.contents.packageJsonContent.type ?
                             ts.Diagnostics.File_is_CommonJS_module_because_0_has_field_type_whose_value_is_not_module :
                             ts.Diagnostics.File_is_CommonJS_module_because_0_does_not_have_field_type, toFileName(ts.last(file.packageJsonLocations), fileNameConvertor)));
                     }
@@ -141966,7 +141974,7 @@ var ts;
             }
             var parent = node.parent;
             var typeChecker = program.getTypeChecker();
-            if (node.kind === 159 /* SyntaxKind.OverrideKeyword */ || (ts.isJSDocOverrideTag(node) && ts.rangeContainsPosition(node.tagName, position))) {
+            if (node.kind === 159 /* SyntaxKind.OverrideKeyword */ || (ts.isIdentifier(node) && ts.isJSDocOverrideTag(parent) && parent.tagName === node)) {
                 return getDefinitionFromOverriddenMember(typeChecker, node) || ts.emptyArray;
             }
             // Labels
diff --git a/lib/typescriptServices.js b/lib/typescriptServices.js
index 61b1259b561f..955e00658c06 100644
--- a/lib/typescriptServices.js
+++ b/lib/typescriptServices.js
@@ -294,7 +294,7 @@ var ts;
     // The following is baselined as a literal template type without intervention
     /** The version of the TypeScript compiler release */
     // eslint-disable-next-line @typescript-eslint/no-inferrable-types
-    ts.version = "4.8.3";
+    ts.version = "4.8.4";
     /* @internal */
     var Comparison;
     (function (Comparison) {
@@ -31701,6 +31701,7 @@ var ts;
             case 335 /* SyntaxKind.JSDocProtectedTag */:
             case 336 /* SyntaxKind.JSDocReadonlyTag */:
             case 331 /* SyntaxKind.JSDocDeprecatedTag */:
+            case 337 /* SyntaxKind.JSDocOverrideTag */:
                 return visitNode(cbNode, node.tagName)
                     || (typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment));
             case 350 /* SyntaxKind.PartiallyEmittedExpression */:
@@ -42989,7 +42990,7 @@ var ts;
     function withPackageId(packageInfo, r) {
         var packageId;
         if (r && packageInfo) {
-            var packageJsonContent = packageInfo.packageJsonContent;
+            var packageJsonContent = packageInfo.contents.packageJsonContent;
             if (typeof packageJsonContent.name === "string" && typeof packageJsonContent.version === "string") {
                 packageId = {
                     name: packageJsonContent.name,
@@ -44308,16 +44309,16 @@ var ts;
     function loadNodeModuleFromDirectory(extensions, candidate, onlyRecordFailures, state, considerPackageJson) {
         if (considerPackageJson === void 0) { considerPackageJson = true; }
         var packageInfo = considerPackageJson ? getPackageJsonInfo(candidate, onlyRecordFailures, state) : undefined;
-        var packageJsonContent = packageInfo && packageInfo.packageJsonContent;
-        var versionPaths = packageInfo && packageInfo.versionPaths;
+        var packageJsonContent = packageInfo && packageInfo.contents.packageJsonContent;
+        var versionPaths = packageInfo && packageInfo.contents.versionPaths;
         return withPackageId(packageInfo, loadNodeModuleFromDirectoryWorker(extensions, candidate, onlyRecordFailures, state, packageJsonContent, versionPaths));
     }
     /* @internal */
     function getEntrypointsFromPackageJsonInfo(packageJsonInfo, options, host, cache, resolveJs) {
-        if (!resolveJs && packageJsonInfo.resolvedEntrypoints !== undefined) {
+        if (!resolveJs && packageJsonInfo.contents.resolvedEntrypoints !== undefined) {
             // Cached value excludes resolutions to JS files - those could be
             // cached separately, but they're used rarely.
-            return packageJsonInfo.resolvedEntrypoints;
+            return packageJsonInfo.contents.resolvedEntrypoints;
         }
         var entrypoints;
         var extensions = resolveJs ? Extensions.JavaScript : Extensions.TypeScript;
@@ -44326,13 +44327,13 @@ var ts;
         requireState.conditions = ["node", "require", "types"];
         requireState.requestContainingDirectory = packageJsonInfo.packageDirectory;
         var requireResolution = loadNodeModuleFromDirectoryWorker(extensions, packageJsonInfo.packageDirectory, 
-        /*onlyRecordFailures*/ false, requireState, packageJsonInfo.packageJsonContent, packageJsonInfo.versionPaths);
+        /*onlyRecordFailures*/ false, requireState, packageJsonInfo.contents.packageJsonContent, packageJsonInfo.contents.versionPaths);
         entrypoints = ts.append(entrypoints, requireResolution === null || requireResolution === void 0 ? void 0 : requireResolution.path);
-        if (features & NodeResolutionFeatures.Exports && packageJsonInfo.packageJsonContent.exports) {
+        if (features & NodeResolutionFeatures.Exports && packageJsonInfo.contents.packageJsonContent.exports) {
             for (var _i = 0, _a = [["node", "import", "types"], ["node", "require", "types"]]; _i < _a.length; _i++) {
                 var conditions = _a[_i];
                 var exportState = __assign(__assign({}, requireState), { failedLookupLocations: [], conditions: conditions });
-                var exportResolutions = loadEntrypointsFromExportMap(packageJsonInfo, packageJsonInfo.packageJsonContent.exports, exportState, extensions);
+                var exportResolutions = loadEntrypointsFromExportMap(packageJsonInfo, packageJsonInfo.contents.packageJsonContent.exports, exportState, extensions);
                 if (exportResolutions) {
                     for (var _b = 0, exportResolutions_1 = exportResolutions; _b < exportResolutions_1.length; _b++) {
                         var resolution = exportResolutions_1[_b];
@@ -44341,7 +44342,7 @@ var ts;
                 }
             }
         }
-        return packageJsonInfo.resolvedEntrypoints = entrypoints || false;
+        return packageJsonInfo.contents.resolvedEntrypoints = entrypoints || false;
     }
     ts.getEntrypointsFromPackageJsonInfo = getEntrypointsFromPackageJsonInfo;
     function loadEntrypointsFromExportMap(scope, exports, state, extensions) {
@@ -44445,7 +44446,9 @@ var ts;
                 if (traceEnabled)
                     trace(host, ts.Diagnostics.File_0_exists_according_to_earlier_cached_lookups, packageJsonPath);
                 state.affectingLocations.push(packageJsonPath);
-                return existing;
+                return existing.packageDirectory === packageDirectory ?
+                    existing :
+                    { packageDirectory: packageDirectory, contents: existing.contents };
             }
             else {
                 if (existing && traceEnabled)
@@ -44461,7 +44464,7 @@ var ts;
                 trace(host, ts.Diagnostics.Found_package_json_at_0, packageJsonPath);
             }
             var versionPaths = readPackageJsonTypesVersionPaths(packageJsonContent, state);
-            var result = { packageDirectory: packageDirectory, packageJsonContent: packageJsonContent, versionPaths: versionPaths, resolvedEntrypoints: undefined };
+            var result = { packageDirectory: packageDirectory, contents: { packageJsonContent: packageJsonContent, versionPaths: versionPaths, resolvedEntrypoints: undefined } };
             (_b = state.packageJsonInfoCache) === null || _b === void 0 ? void 0 : _b.setPackageJsonInfo(packageJsonPath, result);
             state.affectingLocations.push(packageJsonPath);
             return result;
@@ -44586,17 +44589,16 @@ var ts;
     }
     function loadModuleFromSelfNameReference(extensions, moduleName, directory, state, cache, redirectedReference) {
         var _a, _b;
-        var useCaseSensitiveFileNames = typeof state.host.useCaseSensitiveFileNames === "function" ? state.host.useCaseSensitiveFileNames() : state.host.useCaseSensitiveFileNames;
-        var directoryPath = ts.toPath(ts.combinePaths(directory, "dummy"), (_b = (_a = state.host).getCurrentDirectory) === null || _b === void 0 ? void 0 : _b.call(_a), ts.createGetCanonicalFileName(useCaseSensitiveFileNames === undefined ? true : useCaseSensitiveFileNames));
+        var directoryPath = ts.getNormalizedAbsolutePath(ts.combinePaths(directory, "dummy"), (_b = (_a = state.host).getCurrentDirectory) === null || _b === void 0 ? void 0 : _b.call(_a));
         var scope = getPackageScopeForPath(directoryPath, state);
-        if (!scope || !scope.packageJsonContent.exports) {
+        if (!scope || !scope.contents.packageJsonContent.exports) {
             return undefined;
         }
-        if (typeof scope.packageJsonContent.name !== "string") {
+        if (typeof scope.contents.packageJsonContent.name !== "string") {
             return undefined;
         }
         var parts = ts.getPathComponents(moduleName); // unrooted paths should have `""` as their 0th entry
-        var nameParts = ts.getPathComponents(scope.packageJsonContent.name);
+        var nameParts = ts.getPathComponents(scope.contents.packageJsonContent.name);
         if (!ts.every(nameParts, function (p, i) { return parts[i] === p; })) {
             return undefined;
         }
@@ -44604,30 +44606,30 @@ var ts;
         return loadModuleFromExports(scope, extensions, !ts.length(trailingParts) ? "." : ".".concat(ts.directorySeparator).concat(trailingParts.join(ts.directorySeparator)), state, cache, redirectedReference);
     }
     function loadModuleFromExports(scope, extensions, subpath, state, cache, redirectedReference) {
-        if (!scope.packageJsonContent.exports) {
+        if (!scope.contents.packageJsonContent.exports) {
             return undefined;
         }
         if (subpath === ".") {
             var mainExport = void 0;
-            if (typeof scope.packageJsonContent.exports === "string" || Array.isArray(scope.packageJsonContent.exports) || (typeof scope.packageJsonContent.exports === "object" && noKeyStartsWithDot(scope.packageJsonContent.exports))) {
-                mainExport = scope.packageJsonContent.exports;
+            if (typeof scope.contents.packageJsonContent.exports === "string" || Array.isArray(scope.contents.packageJsonContent.exports) || (typeof scope.contents.packageJsonContent.exports === "object" && noKeyStartsWithDot(scope.contents.packageJsonContent.exports))) {
+                mainExport = scope.contents.packageJsonContent.exports;
             }
-            else if (ts.hasProperty(scope.packageJsonContent.exports, ".")) {
-                mainExport = scope.packageJsonContent.exports["."];
+            else if (ts.hasProperty(scope.contents.packageJsonContent.exports, ".")) {
+                mainExport = scope.contents.packageJsonContent.exports["."];
             }
             if (mainExport) {
                 var loadModuleFromTargetImportOrExport = getLoadModuleFromTargetImportOrExport(extensions, state, cache, redirectedReference, subpath, scope, /*isImports*/ false);
                 return loadModuleFromTargetImportOrExport(mainExport, "", /*pattern*/ false);
             }
         }
-        else if (allKeysStartWithDot(scope.packageJsonContent.exports)) {
-            if (typeof scope.packageJsonContent.exports !== "object") {
+        else if (allKeysStartWithDot(scope.contents.packageJsonContent.exports)) {
+            if (typeof scope.contents.packageJsonContent.exports !== "object") {
                 if (state.traceEnabled) {
                     trace(state.host, ts.Diagnostics.Export_specifier_0_does_not_exist_in_package_json_scope_at_path_1, subpath, scope.packageDirectory);
                 }
                 return toSearchResult(/*value*/ undefined);
             }
-            var result = loadModuleFromImportsOrExports(extensions, state, cache, redirectedReference, subpath, scope.packageJsonContent.exports, scope, /*isImports*/ false);
+            var result = loadModuleFromImportsOrExports(extensions, state, cache, redirectedReference, subpath, scope.contents.packageJsonContent.exports, scope, /*isImports*/ false);
             if (result) {
                 return result;
             }
@@ -44645,8 +44647,7 @@ var ts;
             }
             return toSearchResult(/*value*/ undefined);
         }
-        var useCaseSensitiveFileNames = typeof state.host.useCaseSensitiveFileNames === "function" ? state.host.useCaseSensitiveFileNames() : state.host.useCaseSensitiveFileNames;
-        var directoryPath = ts.toPath(ts.combinePaths(directory, "dummy"), (_b = (_a = state.host).getCurrentDirectory) === null || _b === void 0 ? void 0 : _b.call(_a), ts.createGetCanonicalFileName(useCaseSensitiveFileNames === undefined ? true : useCaseSensitiveFileNames));
+        var directoryPath = ts.getNormalizedAbsolutePath(ts.combinePaths(directory, "dummy"), (_b = (_a = state.host).getCurrentDirectory) === null || _b === void 0 ? void 0 : _b.call(_a));
         var scope = getPackageScopeForPath(directoryPath, state);
         if (!scope) {
             if (state.traceEnabled) {
@@ -44654,13 +44655,13 @@ var ts;
             }
             return toSearchResult(/*value*/ undefined);
         }
-        if (!scope.packageJsonContent.imports) {
+        if (!scope.contents.packageJsonContent.imports) {
             if (state.traceEnabled) {
                 trace(state.host, ts.Diagnostics.package_json_scope_0_has_no_imports_defined, scope.packageDirectory);
             }
             return toSearchResult(/*value*/ undefined);
         }
-        var result = loadModuleFromImportsOrExports(extensions, state, cache, redirectedReference, moduleName, scope.packageJsonContent.imports, scope, /*isImports*/ true);
+        var result = loadModuleFromImportsOrExports(extensions, state, cache, redirectedReference, moduleName, scope.contents.packageJsonContent.imports, scope, /*isImports*/ true);
         if (result) {
             return result;
         }
@@ -45005,7 +45006,7 @@ var ts;
                 if (fromFile) {
                     return noPackageId(fromFile);
                 }
-                var fromDirectory = loadNodeModuleFromDirectoryWorker(extensions, candidate, !nodeModulesDirectoryExists, state, packageInfo.packageJsonContent, packageInfo.versionPaths);
+                var fromDirectory = loadNodeModuleFromDirectoryWorker(extensions, candidate, !nodeModulesDirectoryExists, state, packageInfo.contents.packageJsonContent, packageInfo.contents.versionPaths);
                 return withPackageId(packageInfo, fromDirectory);
             }
         }
@@ -45013,14 +45014,14 @@ var ts;
         var loader = function (extensions, candidate, onlyRecordFailures, state) {
             var _a;
             // package exports are higher priority than file/directory lookups (and, if there's exports present, blocks them)
-            if (packageInfo && packageInfo.packageJsonContent.exports && state.features & NodeResolutionFeatures.Exports) {
+            if (packageInfo && packageInfo.contents.packageJsonContent.exports && state.features & NodeResolutionFeatures.Exports) {
                 return (_a = loadModuleFromExports(packageInfo, extensions, ts.combinePaths(".", rest), state, cache, redirectedReference)) === null || _a === void 0 ? void 0 : _a.value;
             }
             var pathAndExtension = loadModuleFromFile(extensions, candidate, onlyRecordFailures, state) ||
-                loadNodeModuleFromDirectoryWorker(extensions, candidate, onlyRecordFailures, state, packageInfo && packageInfo.packageJsonContent, packageInfo && packageInfo.versionPaths);
+                loadNodeModuleFromDirectoryWorker(extensions, candidate, onlyRecordFailures, state, packageInfo && packageInfo.contents.packageJsonContent, packageInfo && packageInfo.contents.versionPaths);
             if (!pathAndExtension && packageInfo
                 // eslint-disable-next-line no-null/no-null
-                && (packageInfo.packageJsonContent.exports === undefined || packageInfo.packageJsonContent.exports === null)
+                && (packageInfo.contents.packageJsonContent.exports === undefined || packageInfo.contents.packageJsonContent.exports === null)
                 && state.features & NodeResolutionFeatures.EsmMode) {
                 // EsmMode disables index lookup in `loadNodeModuleFromDirectoryWorker` generally, however non-relative package resolutions still assume
                 // a default `index.js` entrypoint if no `main` or `exports` are present
@@ -45032,12 +45033,12 @@ var ts;
             var packageDirectory = ts.combinePaths(nodeModulesDirectory, packageName);
             // Don't use a "types" or "main" from here because we're not loading the root, but a subdirectory -- just here for the packageId and path mappings.
             packageInfo = getPackageJsonInfo(packageDirectory, !nodeModulesDirectoryExists, state);
-            if (packageInfo && packageInfo.versionPaths) {
+            if (packageInfo && packageInfo.contents.versionPaths) {
                 if (state.traceEnabled) {
-                    trace(state.host, ts.Diagnostics.package_json_has_a_typesVersions_entry_0_that_matches_compiler_version_1_looking_for_a_pattern_to_match_module_name_2, packageInfo.versionPaths.version, ts.version, rest);
+                    trace(state.host, ts.Diagnostics.package_json_has_a_typesVersions_entry_0_that_matches_compiler_version_1_looking_for_a_pattern_to_match_module_name_2, packageInfo.contents.versionPaths.version, ts.version, rest);
                 }
                 var packageDirectoryExists = nodeModulesDirectoryExists && ts.directoryProbablyExists(packageDirectory, state.host);
-                var fromPaths = tryLoadModuleUsingPaths(extensions, rest, packageDirectory, packageInfo.versionPaths.paths, /*pathPatterns*/ undefined, loader, !packageDirectoryExists, state);
+                var fromPaths = tryLoadModuleUsingPaths(extensions, rest, packageDirectory, packageInfo.contents.versionPaths.paths, /*pathPatterns*/ undefined, loader, !packageDirectoryExists, state);
                 if (fromPaths) {
                     return fromPaths.value;
                 }
@@ -49338,6 +49339,7 @@ var ts;
         var wildcardType = createIntrinsicType(1 /* TypeFlags.Any */, "any");
         var errorType = createIntrinsicType(1 /* TypeFlags.Any */, "error");
         var unresolvedType = createIntrinsicType(1 /* TypeFlags.Any */, "unresolved");
+        var nonInferrableAnyType = createIntrinsicType(1 /* TypeFlags.Any */, "any", 65536 /* ObjectFlags.ContainsWideningType */);
         var intrinsicMarkerType = createIntrinsicType(1 /* TypeFlags.Any */, "intrinsic");
         var unknownType = createIntrinsicType(2 /* TypeFlags.Unknown */, "unknown");
         var nonNullUnknownType = createIntrinsicType(2 /* TypeFlags.Unknown */, "unknown");
@@ -51939,7 +51941,7 @@ var ts;
                                 if (ext === ".ts" /* Extension.Ts */ || ext === ".js" /* Extension.Js */ || ext === ".tsx" /* Extension.Tsx */ || ext === ".jsx" /* Extension.Jsx */) {
                                     var scope = currentSourceFile.packageJsonScope;
                                     var targetExt = ext === ".ts" /* Extension.Ts */ ? ".mts" /* Extension.Mts */ : ext === ".js" /* Extension.Js */ ? ".mjs" /* Extension.Mjs */ : undefined;
-                                    if (scope && !scope.packageJsonContent.type) {
+                                    if (scope && !scope.contents.packageJsonContent.type) {
                                         if (targetExt) {
                                             diagnosticDetails = ts.chainDiagnosticMessages(
                                             /*details*/ undefined, ts.Diagnostics.To_convert_this_file_to_an_ECMAScript_module_change_its_file_extension_to_0_or_add_the_field_type_Colon_module_to_1, targetExt, ts.combinePaths(scope.packageDirectory, "package.json"));
@@ -54167,22 +54169,15 @@ var ts;
                 context.approximateLength += ts.symbolName(parameterSymbol).length + 3;
                 return parameterNode;
                 function cloneBindingName(node) {
-                    return elideInitializerAndPropertyRenamingAndSetEmitFlags(node);
-                    function elideInitializerAndPropertyRenamingAndSetEmitFlags(node) {
+                    return elideInitializerAndSetEmitFlags(node);
+                    function elideInitializerAndSetEmitFlags(node) {
                         if (context.tracker.trackSymbol && ts.isComputedPropertyName(node) && isLateBindableName(node)) {
                             trackComputedName(node.expression, context.enclosingDeclaration, context);
                         }
-                        var visited = ts.visitEachChild(node, elideInitializerAndPropertyRenamingAndSetEmitFlags, ts.nullTransformationContext, /*nodesVisitor*/ undefined, elideInitializerAndPropertyRenamingAndSetEmitFlags);
+                        var visited = ts.visitEachChild(node, elideInitializerAndSetEmitFlags, ts.nullTransformationContext, /*nodesVisitor*/ undefined, elideInitializerAndSetEmitFlags);
                         if (ts.isBindingElement(visited)) {
-                            if (visited.propertyName && ts.isIdentifier(visited.propertyName) && ts.isIdentifier(visited.name)) {
-                                visited = ts.factory.updateBindingElement(visited, visited.dotDotDotToken, 
-                                /* propertyName*/ undefined, visited.propertyName, 
-                                /*initializer*/ undefined);
-                            }
-                            else {
-                                visited = ts.factory.updateBindingElement(visited, visited.dotDotDotToken, visited.propertyName, visited.name, 
-                                /*initializer*/ undefined);
-                            }
+                            visited = ts.factory.updateBindingElement(visited, visited.dotDotDotToken, visited.propertyName, visited.name, 
+                            /*initializer*/ undefined);
                         }
                         if (!ts.nodeIsSynthesized(visited)) {
                             visited = ts.factory.cloneNode(visited);
@@ -57177,7 +57172,11 @@ var ts;
             if (reportErrors && !declarationBelongsToPrivateAmbientMember(element)) {
                 reportImplicitAny(element, anyType);
             }
-            return anyType;
+            // When we're including the pattern in the type (an indication we're obtaining a contextual type), we
+            // use a non-inferrable any type. Inference will never directly infer this type, but it is possible
+            // to infer a type that contains it, e.g. for a binding pattern like [foo] or { foo }. In such cases,
+            // widening of the binding pattern type substitutes a regular any for the non-inferrable any.
+            return includePatternInType ? nonInferrableAnyType : anyType;
         }
         // Return the type implied by an object binding pattern
         function getTypeFromObjectBindingPattern(pattern, includePatternInType, reportErrors) {
@@ -59278,6 +59277,12 @@ var ts;
                 return mapType(type, getLowerBoundOfKeyType);
             }
             if (type.flags & 2097152 /* TypeFlags.Intersection */) {
+                // Similarly to getTypeFromIntersectionTypeNode, we preserve the special string & {}, number & {},
+                // and bigint & {} intersections that are used to prevent subtype reduction in union types.
+                var types = type.types;
+                if (types.length === 2 && !!(types[0].flags & (4 /* TypeFlags.String */ | 8 /* TypeFlags.Number */ | 64 /* TypeFlags.BigInt */)) && types[1] === emptyTypeLiteralType) {
+                    return type;
+                }
                 return getIntersectionType(ts.sameMap(type.types, getLowerBoundOfKeyType));
             }
             return type;
@@ -69465,7 +69470,10 @@ var ts;
                         //
                         // This flag is infectious; if we produce Box<never> (where never is silentNeverType), Box<never> is
                         // also non-inferrable.
-                        if (ts.getObjectFlags(source) & 262144 /* ObjectFlags.NonInferrableType */) {
+                        //
+                        // As a special case, also ignore nonInferrableAnyType, which is a special form of the any type
+                        // used as a stand-in for binding elements when they are being inferred.
+                        if (ts.getObjectFlags(source) & 262144 /* ObjectFlags.NonInferrableType */ || source === nonInferrableAnyType) {
                             return;
                         }
                         if (!inference.isFixed) {
@@ -81631,7 +81639,7 @@ var ts;
             checkDecorators(node);
         }
         function getEffectiveTypeArgumentAtIndex(node, typeParameters, index) {
-            if (index < typeParameters.length) {
+            if (node.typeArguments && index < node.typeArguments.length) {
                 return getTypeFromTypeNode(node.typeArguments[index]);
             }
             return getEffectiveTypeArguments(node, typeParameters)[index];
@@ -90410,7 +90418,7 @@ var ts;
                 return grammarErrorOnNode(node, ts.Diagnostics.This_use_of_import_is_invalid_import_calls_can_be_written_but_they_must_have_parentheses_and_cannot_have_type_arguments);
             }
             var nodeArguments = node.arguments;
-            if (moduleKind !== ts.ModuleKind.ESNext && moduleKind !== ts.ModuleKind.NodeNext) {
+            if (moduleKind !== ts.ModuleKind.ESNext && moduleKind !== ts.ModuleKind.NodeNext && moduleKind !== ts.ModuleKind.Node16) {
                 // We are allowed trailing comma after proposal-import-assertions.
                 checkGrammarForDisallowedTrailingComma(nodeArguments);
                 if (nodeArguments.length > 1) {
@@ -118057,7 +118065,7 @@ var ts;
             state.failedLookupLocations = packageJsonLocations;
             state.affectingLocations = packageJsonLocations;
             var packageJsonScope = ts.getPackageScopeForPath(fileName, state);
-            var impliedNodeFormat = (packageJsonScope === null || packageJsonScope === void 0 ? void 0 : packageJsonScope.packageJsonContent.type) === "module" ? ts.ModuleKind.ESNext : ts.ModuleKind.CommonJS;
+            var impliedNodeFormat = (packageJsonScope === null || packageJsonScope === void 0 ? void 0 : packageJsonScope.contents.packageJsonContent.type) === "module" ? ts.ModuleKind.ESNext : ts.ModuleKind.CommonJS;
             return { impliedNodeFormat: impliedNodeFormat, packageJsonLocations: packageJsonLocations, packageJsonScope: packageJsonScope };
         }
     }
@@ -119788,7 +119796,7 @@ var ts;
             // It's a _little odd_ that we can't set `impliedNodeFormat` until the program step - but it's the first and only time we have a resolution cache
             // and a freshly made source file node on hand at the same time, and we need both to set the field. Persisting the resolution cache all the way
             // to the check and emit steps would be bad - so we much prefer detecting and storing the format information on the source file node upfront.
-            var result = getImpliedNodeFormatForFileWorker(toPath(fileName), moduleResolutionCache === null || moduleResolutionCache === void 0 ? void 0 : moduleResolutionCache.getPackageJsonInfoCache(), host, options);
+            var result = getImpliedNodeFormatForFileWorker(ts.getNormalizedAbsolutePath(fileName, currentDirectory), moduleResolutionCache === null || moduleResolutionCache === void 0 ? void 0 : moduleResolutionCache.getPackageJsonInfoCache(), host, options);
             var languageVersion = ts.getEmitScriptTarget(options);
             var setExternalModuleIndicator = ts.getSetExternalModuleIndicator(options);
             return typeof result === "object" ? __assign(__assign({}, result), { languageVersion: languageVersion, setExternalModuleIndicator: setExternalModuleIndicator }) :
@@ -124449,7 +124457,7 @@ var ts;
                 var maybeBlockedByTypesVersions = false;
                 var cachedPackageJson = (_b = (_a = host.getPackageJsonInfoCache) === null || _a === void 0 ? void 0 : _a.call(host)) === null || _b === void 0 ? void 0 : _b.getPackageJsonInfo(packageJsonPath);
                 if (typeof cachedPackageJson === "object" || cachedPackageJson === undefined && host.fileExists(packageJsonPath)) {
-                    var packageJsonContent = (cachedPackageJson === null || cachedPackageJson === void 0 ? void 0 : cachedPackageJson.packageJsonContent) || JSON.parse(host.readFile(packageJsonPath));
+                    var packageJsonContent = (cachedPackageJson === null || cachedPackageJson === void 0 ? void 0 : cachedPackageJson.contents.packageJsonContent) || JSON.parse(host.readFile(packageJsonPath));
                     var importMode = overrideMode || importingSourceFile.impliedNodeFormat;
                     if (ts.getEmitModuleResolutionKind(options) === ts.ModuleResolutionKind.Node16 || ts.getEmitModuleResolutionKind(options) === ts.ModuleResolutionKind.NodeNext) {
                         var conditions = ["node", importMode === ts.ModuleKind.ESNext ? "import" : "require", "types"];
@@ -124811,7 +124819,7 @@ var ts;
                 case ts.ModuleKind.CommonJS:
                     if (file.packageJsonScope) {
                         (result !== null && result !== void 0 ? result : (result = [])).push(ts.chainDiagnosticMessages(
-                        /*details*/ undefined, file.packageJsonScope.packageJsonContent.type ?
+                        /*details*/ undefined, file.packageJsonScope.contents.packageJsonContent.type ?
                             ts.Diagnostics.File_is_CommonJS_module_because_0_has_field_type_whose_value_is_not_module :
                             ts.Diagnostics.File_is_CommonJS_module_because_0_does_not_have_field_type, toFileName(ts.last(file.packageJsonLocations), fileNameConvertor)));
                     }
@@ -141966,7 +141974,7 @@ var ts;
             }
             var parent = node.parent;
             var typeChecker = program.getTypeChecker();
-            if (node.kind === 159 /* SyntaxKind.OverrideKeyword */ || (ts.isJSDocOverrideTag(node) && ts.rangeContainsPosition(node.tagName, position))) {
+            if (node.kind === 159 /* SyntaxKind.OverrideKeyword */ || (ts.isIdentifier(node) && ts.isJSDocOverrideTag(parent) && parent.tagName === node)) {
                 return getDefinitionFromOverriddenMember(typeChecker, node) || ts.emptyArray;
             }
             // Labels
diff --git a/lib/typingsInstaller.js b/lib/typingsInstaller.js
index 9303e787c1ef..c7a265d6c0dc 100644
--- a/lib/typingsInstaller.js
+++ b/lib/typingsInstaller.js
@@ -89,7 +89,7 @@ var ts;
     // The following is baselined as a literal template type without intervention
     /** The version of the TypeScript compiler release */
     // eslint-disable-next-line @typescript-eslint/no-inferrable-types
-    ts.version = "4.8.3";
+    ts.version = "4.8.4";
     /* @internal */
     var Comparison;
     (function (Comparison) {
@@ -31496,6 +31496,7 @@ var ts;
             case 335 /* SyntaxKind.JSDocProtectedTag */:
             case 336 /* SyntaxKind.JSDocReadonlyTag */:
             case 331 /* SyntaxKind.JSDocDeprecatedTag */:
+            case 337 /* SyntaxKind.JSDocOverrideTag */:
                 return visitNode(cbNode, node.tagName)
                     || (typeof node.comment === "string" ? undefined : visitNodes(cbNode, cbNodes, node.comment));
             case 350 /* SyntaxKind.PartiallyEmittedExpression */:
@@ -42784,7 +42785,7 @@ var ts;
     function withPackageId(packageInfo, r) {
         var packageId;
         if (r && packageInfo) {
-            var packageJsonContent = packageInfo.packageJsonContent;
+            var packageJsonContent = packageInfo.contents.packageJsonContent;
             if (typeof packageJsonContent.name === "string" && typeof packageJsonContent.version === "string") {
                 packageId = {
                     name: packageJsonContent.name,
@@ -44103,16 +44104,16 @@ var ts;
     function loadNodeModuleFromDirectory(extensions, candidate, onlyRecordFailures, state, considerPackageJson) {
         if (considerPackageJson === void 0) { considerPackageJson = true; }
         var packageInfo = considerPackageJson ? getPackageJsonInfo(candidate, onlyRecordFailures, state) : undefined;
-        var packageJsonContent = packageInfo && packageInfo.packageJsonContent;
-        var versionPaths = packageInfo && packageInfo.versionPaths;
+        var packageJsonContent = packageInfo && packageInfo.contents.packageJsonContent;
+        var versionPaths = packageInfo && packageInfo.contents.versionPaths;
         return withPackageId(packageInfo, loadNodeModuleFromDirectoryWorker(extensions, candidate, onlyRecordFailures, state, packageJsonContent, versionPaths));
     }
     /* @internal */
     function getEntrypointsFromPackageJsonInfo(packageJsonInfo, options, host, cache, resolveJs) {
-        if (!resolveJs && packageJsonInfo.resolvedEntrypoints !== undefined) {
+        if (!resolveJs && packageJsonInfo.contents.resolvedEntrypoints !== undefined) {
             // Cached value excludes resolutions to JS files - those could be
             // cached separately, but they're used rarely.
-            return packageJsonInfo.resolvedEntrypoints;
+            return packageJsonInfo.contents.resolvedEntrypoints;
         }
         var entrypoints;
         var extensions = resolveJs ? Extensions.JavaScript : Extensions.TypeScript;
@@ -44121,13 +44122,13 @@ var ts;
         requireState.conditions = ["node", "require", "types"];
         requireState.requestContainingDirectory = packageJsonInfo.packageDirectory;
         var requireResolution = loadNodeModuleFromDirectoryWorker(extensions, packageJsonInfo.packageDirectory, 
-        /*onlyRecordFailures*/ false, requireState, packageJsonInfo.packageJsonContent, packageJsonInfo.versionPaths);
+        /*onlyRecordFailures*/ false, requireState, packageJsonInfo.contents.packageJsonContent, packageJsonInfo.contents.versionPaths);
         entrypoints = ts.append(entrypoints, requireResolution === null || requireResolution === void 0 ? void 0 : requireResolution.path);
-        if (features & NodeResolutionFeatures.Exports && packageJsonInfo.packageJsonContent.exports) {
+        if (features & NodeResolutionFeatures.Exports && packageJsonInfo.contents.packageJsonContent.exports) {
             for (var _i = 0, _a = [["node", "import", "types"], ["node", "require", "types"]]; _i < _a.length; _i++) {
                 var conditions = _a[_i];
                 var exportState = __assign(__assign({}, requireState), { failedLookupLocations: [], conditions: conditions });
-                var exportResolutions = loadEntrypointsFromExportMap(packageJsonInfo, packageJsonInfo.packageJsonContent.exports, exportState, extensions);
+                var exportResolutions = loadEntrypointsFromExportMap(packageJsonInfo, packageJsonInfo.contents.packageJsonContent.exports, exportState, extensions);
                 if (exportResolutions) {
                     for (var _b = 0, exportResolutions_1 = exportResolutions; _b < exportResolutions_1.length; _b++) {
                         var resolution = exportResolutions_1[_b];
@@ -44136,7 +44137,7 @@ var ts;
                 }
             }
         }
-        return packageJsonInfo.resolvedEntrypoints = entrypoints || false;
+        return packageJsonInfo.contents.resolvedEntrypoints = entrypoints || false;
     }
     ts.getEntrypointsFromPackageJsonInfo = getEntrypointsFromPackageJsonInfo;
     function loadEntrypointsFromExportMap(scope, exports, state, extensions) {
@@ -44240,7 +44241,9 @@ var ts;
                 if (traceEnabled)
                     trace(host, ts.Diagnostics.File_0_exists_according_to_earlier_cached_lookups, packageJsonPath);
                 state.affectingLocations.push(packageJsonPath);
-                return existing;
+                return existing.packageDirectory === packageDirectory ?
+                    existing :
+                    { packageDirectory: packageDirectory, contents: existing.contents };
             }
             else {
                 if (existing && traceEnabled)
@@ -44256,7 +44259,7 @@ var ts;
                 trace(host, ts.Diagnostics.Found_package_json_at_0, packageJsonPath);
             }
             var versionPaths = readPackageJsonTypesVersionPaths(packageJsonContent, state);
-            var result = { packageDirectory: packageDirectory, packageJsonContent: packageJsonContent, versionPaths: versionPaths, resolvedEntrypoints: undefined };
+            var result = { packageDirectory: packageDirectory, contents: { packageJsonContent: packageJsonContent, versionPaths: versionPaths, resolvedEntrypoints: undefined } };
             (_b = state.packageJsonInfoCache) === null || _b === void 0 ? void 0 : _b.setPackageJsonInfo(packageJsonPath, result);
             state.affectingLocations.push(packageJsonPath);
             return result;
@@ -44381,17 +44384,16 @@ var ts;
     }
     function loadModuleFromSelfNameReference(extensions, moduleName, directory, state, cache, redirectedReference) {
         var _a, _b;
-        var useCaseSensitiveFileNames = typeof state.host.useCaseSensitiveFileNames === "function" ? state.host.useCaseSensitiveFileNames() : state.host.useCaseSensitiveFileNames;
-        var directoryPath = ts.toPath(ts.combinePaths(directory, "dummy"), (_b = (_a = state.host).getCurrentDirectory) === null || _b === void 0 ? void 0 : _b.call(_a), ts.createGetCanonicalFileName(useCaseSensitiveFileNames === undefined ? true : useCaseSensitiveFileNames));
+        var directoryPath = ts.getNormalizedAbsolutePath(ts.combinePaths(directory, "dummy"), (_b = (_a = state.host).getCurrentDirectory) === null || _b === void 0 ? void 0 : _b.call(_a));
         var scope = getPackageScopeForPath(directoryPath, state);
-        if (!scope || !scope.packageJsonContent.exports) {
+        if (!scope || !scope.contents.packageJsonContent.exports) {
             return undefined;
         }
-        if (typeof scope.packageJsonContent.name !== "string") {
+        if (typeof scope.contents.packageJsonContent.name !== "string") {
             return undefined;
         }
         var parts = ts.getPathComponents(moduleName); // unrooted paths should have `""` as their 0th entry
-        var nameParts = ts.getPathComponents(scope.packageJsonContent.name);
+        var nameParts = ts.getPathComponents(scope.contents.packageJsonContent.name);
         if (!ts.every(nameParts, function (p, i) { return parts[i] === p; })) {
             return undefined;
         }
@@ -44399,30 +44401,30 @@ var ts;
         return loadModuleFromExports(scope, extensions, !ts.length(trailingParts) ? "." : ".".concat(ts.directorySeparator).concat(trailingParts.join(ts.directorySeparator)), state, cache, redirectedReference);
     }
     function loadModuleFromExports(scope, extensions, subpath, state, cache, redirectedReference) {
-        if (!scope.packageJsonContent.exports) {
+        if (!scope.contents.packageJsonContent.exports) {
             return undefined;
         }
         if (subpath === ".") {
             var mainExport = void 0;
-            if (typeof scope.packageJsonContent.exports === "string" || Array.isArray(scope.packageJsonContent.exports) || (typeof scope.packageJsonContent.exports === "object" && noKeyStartsWithDot(scope.packageJsonContent.exports))) {
-                mainExport = scope.packageJsonContent.exports;
+            if (typeof scope.contents.packageJsonContent.exports === "string" || Array.isArray(scope.contents.packageJsonContent.exports) || (typeof scope.contents.packageJsonContent.exports === "object" && noKeyStartsWithDot(scope.contents.packageJsonContent.exports))) {
+                mainExport = scope.contents.packageJsonContent.exports;
             }
-            else if (ts.hasProperty(scope.packageJsonContent.exports, ".")) {
-                mainExport = scope.packageJsonContent.exports["."];
+            else if (ts.hasProperty(scope.contents.packageJsonContent.exports, ".")) {
+                mainExport = scope.contents.packageJsonContent.exports["."];
             }
             if (mainExport) {
                 var loadModuleFromTargetImportOrExport = getLoadModuleFromTargetImportOrExport(extensions, state, cache, redirectedReference, subpath, scope, /*isImports*/ false);
                 return loadModuleFromTargetImportOrExport(mainExport, "", /*pattern*/ false);
             }
         }
-        else if (allKeysStartWithDot(scope.packageJsonContent.exports)) {
-            if (typeof scope.packageJsonContent.exports !== "object") {
+        else if (allKeysStartWithDot(scope.contents.packageJsonContent.exports)) {
+            if (typeof scope.contents.packageJsonContent.exports !== "object") {
                 if (state.traceEnabled) {
                     trace(state.host, ts.Diagnostics.Export_specifier_0_does_not_exist_in_package_json_scope_at_path_1, subpath, scope.packageDirectory);
                 }
                 return toSearchResult(/*value*/ undefined);
             }
-            var result = loadModuleFromImportsOrExports(extensions, state, cache, redirectedReference, subpath, scope.packageJsonContent.exports, scope, /*isImports*/ false);
+            var result = loadModuleFromImportsOrExports(extensions, state, cache, redirectedReference, subpath, scope.contents.packageJsonContent.exports, scope, /*isImports*/ false);
             if (result) {
                 return result;
             }
@@ -44440,8 +44442,7 @@ var ts;
             }
             return toSearchResult(/*value*/ undefined);
         }
-        var useCaseSensitiveFileNames = typeof state.host.useCaseSensitiveFileNames === "function" ? state.host.useCaseSensitiveFileNames() : state.host.useCaseSensitiveFileNames;
-        var directoryPath = ts.toPath(ts.combinePaths(directory, "dummy"), (_b = (_a = state.host).getCurrentDirectory) === null || _b === void 0 ? void 0 : _b.call(_a), ts.createGetCanonicalFileName(useCaseSensitiveFileNames === undefined ? true : useCaseSensitiveFileNames));
+        var directoryPath = ts.getNormalizedAbsolutePath(ts.combinePaths(directory, "dummy"), (_b = (_a = state.host).getCurrentDirectory) === null || _b === void 0 ? void 0 : _b.call(_a));
         var scope = getPackageScopeForPath(directoryPath, state);
         if (!scope) {
             if (state.traceEnabled) {
@@ -44449,13 +44450,13 @@ var ts;
             }
             return toSearchResult(/*value*/ undefined);
         }
-        if (!scope.packageJsonContent.imports) {
+        if (!scope.contents.packageJsonContent.imports) {
             if (state.traceEnabled) {
                 trace(state.host, ts.Diagnostics.package_json_scope_0_has_no_imports_defined, scope.packageDirectory);
             }
             return toSearchResult(/*value*/ undefined);
         }
-        var result = loadModuleFromImportsOrExports(extensions, state, cache, redirectedReference, moduleName, scope.packageJsonContent.imports, scope, /*isImports*/ true);
+        var result = loadModuleFromImportsOrExports(extensions, state, cache, redirectedReference, moduleName, scope.contents.packageJsonContent.imports, scope, /*isImports*/ true);
         if (result) {
             return result;
         }
@@ -44800,7 +44801,7 @@ var ts;
                 if (fromFile) {
                     return noPackageId(fromFile);
                 }
-                var fromDirectory = loadNodeModuleFromDirectoryWorker(extensions, candidate, !nodeModulesDirectoryExists, state, packageInfo.packageJsonContent, packageInfo.versionPaths);
+                var fromDirectory = loadNodeModuleFromDirectoryWorker(extensions, candidate, !nodeModulesDirectoryExists, state, packageInfo.contents.packageJsonContent, packageInfo.contents.versionPaths);
                 return withPackageId(packageInfo, fromDirectory);
             }
         }
@@ -44808,14 +44809,14 @@ var ts;
         var loader = function (extensions, candidate, onlyRecordFailures, state) {
             var _a;
             // package exports are higher priority than file/directory lookups (and, if there's exports present, blocks them)
-            if (packageInfo && packageInfo.packageJsonContent.exports && state.features & NodeResolutionFeatures.Exports) {
+            if (packageInfo && packageInfo.contents.packageJsonContent.exports && state.features & NodeResolutionFeatures.Exports) {
                 return (_a = loadModuleFromExports(packageInfo, extensions, ts.combinePaths(".", rest), state, cache, redirectedReference)) === null || _a === void 0 ? void 0 : _a.value;
             }
             var pathAndExtension = loadModuleFromFile(extensions, candidate, onlyRecordFailures, state) ||
-                loadNodeModuleFromDirectoryWorker(extensions, candidate, onlyRecordFailures, state, packageInfo && packageInfo.packageJsonContent, packageInfo && packageInfo.versionPaths);
+                loadNodeModuleFromDirectoryWorker(extensions, candidate, onlyRecordFailures, state, packageInfo && packageInfo.contents.packageJsonContent, packageInfo && packageInfo.contents.versionPaths);
             if (!pathAndExtension && packageInfo
                 // eslint-disable-next-line no-null/no-null
-                && (packageInfo.packageJsonContent.exports === undefined || packageInfo.packageJsonContent.exports === null)
+                && (packageInfo.contents.packageJsonContent.exports === undefined || packageInfo.contents.packageJsonContent.exports === null)
                 && state.features & NodeResolutionFeatures.EsmMode) {
                 // EsmMode disables index lookup in `loadNodeModuleFromDirectoryWorker` generally, however non-relative package resolutions still assume
                 // a default `index.js` entrypoint if no `main` or `exports` are present
@@ -44827,12 +44828,12 @@ var ts;
             var packageDirectory = ts.combinePaths(nodeModulesDirectory, packageName);
             // Don't use a "types" or "main" from here because we're not loading the root, but a subdirectory -- just here for the packageId and path mappings.
             packageInfo = getPackageJsonInfo(packageDirectory, !nodeModulesDirectoryExists, state);
-            if (packageInfo && packageInfo.versionPaths) {
+            if (packageInfo && packageInfo.contents.versionPaths) {
                 if (state.traceEnabled) {
-                    trace(state.host, ts.Diagnostics.package_json_has_a_typesVersions_entry_0_that_matches_compiler_version_1_looking_for_a_pattern_to_match_module_name_2, packageInfo.versionPaths.version, ts.version, rest);
+                    trace(state.host, ts.Diagnostics.package_json_has_a_typesVersions_entry_0_that_matches_compiler_version_1_looking_for_a_pattern_to_match_module_name_2, packageInfo.contents.versionPaths.version, ts.version, rest);
                 }
                 var packageDirectoryExists = nodeModulesDirectoryExists && ts.directoryProbablyExists(packageDirectory, state.host);
-                var fromPaths = tryLoadModuleUsingPaths(extensions, rest, packageDirectory, packageInfo.versionPaths.paths, /*pathPatterns*/ undefined, loader, !packageDirectoryExists, state);
+                var fromPaths = tryLoadModuleUsingPaths(extensions, rest, packageDirectory, packageInfo.contents.versionPaths.paths, /*pathPatterns*/ undefined, loader, !packageDirectoryExists, state);
                 if (fromPaths) {
                     return fromPaths.value;
                 }
@@ -49133,6 +49134,7 @@ var ts;
         var wildcardType = createIntrinsicType(1 /* TypeFlags.Any */, "any");
         var errorType = createIntrinsicType(1 /* TypeFlags.Any */, "error");
         var unresolvedType = createIntrinsicType(1 /* TypeFlags.Any */, "unresolved");
+        var nonInferrableAnyType = createIntrinsicType(1 /* TypeFlags.Any */, "any", 65536 /* ObjectFlags.ContainsWideningType */);
         var intrinsicMarkerType = createIntrinsicType(1 /* TypeFlags.Any */, "intrinsic");
         var unknownType = createIntrinsicType(2 /* TypeFlags.Unknown */, "unknown");
         var nonNullUnknownType = createIntrinsicType(2 /* TypeFlags.Unknown */, "unknown");
@@ -51734,7 +51736,7 @@ var ts;
                                 if (ext === ".ts" /* Extension.Ts */ || ext === ".js" /* Extension.Js */ || ext === ".tsx" /* Extension.Tsx */ || ext === ".jsx" /* Extension.Jsx */) {
                                     var scope = currentSourceFile.packageJsonScope;
                                     var targetExt = ext === ".ts" /* Extension.Ts */ ? ".mts" /* Extension.Mts */ : ext === ".js" /* Extension.Js */ ? ".mjs" /* Extension.Mjs */ : undefined;
-                                    if (scope && !scope.packageJsonContent.type) {
+                                    if (scope && !scope.contents.packageJsonContent.type) {
                                         if (targetExt) {
                                             diagnosticDetails = ts.chainDiagnosticMessages(
                                             /*details*/ undefined, ts.Diagnostics.To_convert_this_file_to_an_ECMAScript_module_change_its_file_extension_to_0_or_add_the_field_type_Colon_module_to_1, targetExt, ts.combinePaths(scope.packageDirectory, "package.json"));
@@ -53962,22 +53964,15 @@ var ts;
                 context.approximateLength += ts.symbolName(parameterSymbol).length + 3;
                 return parameterNode;
                 function cloneBindingName(node) {
-                    return elideInitializerAndPropertyRenamingAndSetEmitFlags(node);
-                    function elideInitializerAndPropertyRenamingAndSetEmitFlags(node) {
+                    return elideInitializerAndSetEmitFlags(node);
+                    function elideInitializerAndSetEmitFlags(node) {
                         if (context.tracker.trackSymbol && ts.isComputedPropertyName(node) && isLateBindableName(node)) {
                             trackComputedName(node.expression, context.enclosingDeclaration, context);
                         }
-                        var visited = ts.visitEachChild(node, elideInitializerAndPropertyRenamingAndSetEmitFlags, ts.nullTransformationContext, /*nodesVisitor*/ undefined, elideInitializerAndPropertyRenamingAndSetEmitFlags);
+                        var visited = ts.visitEachChild(node, elideInitializerAndSetEmitFlags, ts.nullTransformationContext, /*nodesVisitor*/ undefined, elideInitializerAndSetEmitFlags);
                         if (ts.isBindingElement(visited)) {
-                            if (visited.propertyName && ts.isIdentifier(visited.propertyName) && ts.isIdentifier(visited.name)) {
-                                visited = ts.factory.updateBindingElement(visited, visited.dotDotDotToken, 
-                                /* propertyName*/ undefined, visited.propertyName, 
-                                /*initializer*/ undefined);
-                            }
-                            else {
-                                visited = ts.factory.updateBindingElement(visited, visited.dotDotDotToken, visited.propertyName, visited.name, 
-                                /*initializer*/ undefined);
-                            }
+                            visited = ts.factory.updateBindingElement(visited, visited.dotDotDotToken, visited.propertyName, visited.name, 
+                            /*initializer*/ undefined);
                         }
                         if (!ts.nodeIsSynthesized(visited)) {
                             visited = ts.factory.cloneNode(visited);
@@ -56972,7 +56967,11 @@ var ts;
             if (reportErrors && !declarationBelongsToPrivateAmbientMember(element)) {
                 reportImplicitAny(element, anyType);
             }
-            return anyType;
+            // When we're including the pattern in the type (an indication we're obtaining a contextual type), we
+            // use a non-inferrable any type. Inference will never directly infer this type, but it is possible
+            // to infer a type that contains it, e.g. for a binding pattern like [foo] or { foo }. In such cases,
+            // widening of the binding pattern type substitutes a regular any for the non-inferrable any.
+            return includePatternInType ? nonInferrableAnyType : anyType;
         }
         // Return the type implied by an object binding pattern
         function getTypeFromObjectBindingPattern(pattern, includePatternInType, reportErrors) {
@@ -59073,6 +59072,12 @@ var ts;
                 return mapType(type, getLowerBoundOfKeyType);
             }
             if (type.flags & 2097152 /* TypeFlags.Intersection */) {
+                // Similarly to getTypeFromIntersectionTypeNode, we preserve the special string & {}, number & {},
+                // and bigint & {} intersections that are used to prevent subtype reduction in union types.
+                var types = type.types;
+                if (types.length === 2 && !!(types[0].flags & (4 /* TypeFlags.String */ | 8 /* TypeFlags.Number */ | 64 /* TypeFlags.BigInt */)) && types[1] === emptyTypeLiteralType) {
+                    return type;
+                }
                 return getIntersectionType(ts.sameMap(type.types, getLowerBoundOfKeyType));
             }
             return type;
@@ -69260,7 +69265,10 @@ var ts;
                         //
                         // This flag is infectious; if we produce Box<never> (where never is silentNeverType), Box<never> is
                         // also non-inferrable.
-                        if (ts.getObjectFlags(source) & 262144 /* ObjectFlags.NonInferrableType */) {
+                        //
+                        // As a special case, also ignore nonInferrableAnyType, which is a special form of the any type
+                        // used as a stand-in for binding elements when they are being inferred.
+                        if (ts.getObjectFlags(source) & 262144 /* ObjectFlags.NonInferrableType */ || source === nonInferrableAnyType) {
                             return;
                         }
                         if (!inference.isFixed) {
@@ -81426,7 +81434,7 @@ var ts;
             checkDecorators(node);
         }
         function getEffectiveTypeArgumentAtIndex(node, typeParameters, index) {
-            if (index < typeParameters.length) {
+            if (node.typeArguments && index < node.typeArguments.length) {
                 return getTypeFromTypeNode(node.typeArguments[index]);
             }
             return getEffectiveTypeArguments(node, typeParameters)[index];
@@ -90205,7 +90213,7 @@ var ts;
                 return grammarErrorOnNode(node, ts.Diagnostics.This_use_of_import_is_invalid_import_calls_can_be_written_but_they_must_have_parentheses_and_cannot_have_type_arguments);
             }
             var nodeArguments = node.arguments;
-            if (moduleKind !== ts.ModuleKind.ESNext && moduleKind !== ts.ModuleKind.NodeNext) {
+            if (moduleKind !== ts.ModuleKind.ESNext && moduleKind !== ts.ModuleKind.NodeNext && moduleKind !== ts.ModuleKind.Node16) {
                 // We are allowed trailing comma after proposal-import-assertions.
                 checkGrammarForDisallowedTrailingComma(nodeArguments);
                 if (nodeArguments.length > 1) {
@@ -117852,7 +117860,7 @@ var ts;
             state.failedLookupLocations = packageJsonLocations;
             state.affectingLocations = packageJsonLocations;
             var packageJsonScope = ts.getPackageScopeForPath(fileName, state);
-            var impliedNodeFormat = (packageJsonScope === null || packageJsonScope === void 0 ? void 0 : packageJsonScope.packageJsonContent.type) === "module" ? ts.ModuleKind.ESNext : ts.ModuleKind.CommonJS;
+            var impliedNodeFormat = (packageJsonScope === null || packageJsonScope === void 0 ? void 0 : packageJsonScope.contents.packageJsonContent.type) === "module" ? ts.ModuleKind.ESNext : ts.ModuleKind.CommonJS;
             return { impliedNodeFormat: impliedNodeFormat, packageJsonLocations: packageJsonLocations, packageJsonScope: packageJsonScope };
         }
     }
@@ -119583,7 +119591,7 @@ var ts;
             // It's a _little odd_ that we can't set `impliedNodeFormat` until the program step - but it's the first and only time we have a resolution cache
             // and a freshly made source file node on hand at the same time, and we need both to set the field. Persisting the resolution cache all the way
             // to the check and emit steps would be bad - so we much prefer detecting and storing the format information on the source file node upfront.
-            var result = getImpliedNodeFormatForFileWorker(toPath(fileName), moduleResolutionCache === null || moduleResolutionCache === void 0 ? void 0 : moduleResolutionCache.getPackageJsonInfoCache(), host, options);
+            var result = getImpliedNodeFormatForFileWorker(ts.getNormalizedAbsolutePath(fileName, currentDirectory), moduleResolutionCache === null || moduleResolutionCache === void 0 ? void 0 : moduleResolutionCache.getPackageJsonInfoCache(), host, options);
             var languageVersion = ts.getEmitScriptTarget(options);
             var setExternalModuleIndicator = ts.getSetExternalModuleIndicator(options);
             return typeof result === "object" ? __assign(__assign({}, result), { languageVersion: languageVersion, setExternalModuleIndicator: setExternalModuleIndicator }) :
@@ -124244,7 +124252,7 @@ var ts;
                 var maybeBlockedByTypesVersions = false;
                 var cachedPackageJson = (_b = (_a = host.getPackageJsonInfoCache) === null || _a === void 0 ? void 0 : _a.call(host)) === null || _b === void 0 ? void 0 : _b.getPackageJsonInfo(packageJsonPath);
                 if (typeof cachedPackageJson === "object" || cachedPackageJson === undefined && host.fileExists(packageJsonPath)) {
-                    var packageJsonContent = (cachedPackageJson === null || cachedPackageJson === void 0 ? void 0 : cachedPackageJson.packageJsonContent) || JSON.parse(host.readFile(packageJsonPath));
+                    var packageJsonContent = (cachedPackageJson === null || cachedPackageJson === void 0 ? void 0 : cachedPackageJson.contents.packageJsonContent) || JSON.parse(host.readFile(packageJsonPath));
                     var importMode = overrideMode || importingSourceFile.impliedNodeFormat;
                     if (ts.getEmitModuleResolutionKind(options) === ts.ModuleResolutionKind.Node16 || ts.getEmitModuleResolutionKind(options) === ts.ModuleResolutionKind.NodeNext) {
                         var conditions = ["node", importMode === ts.ModuleKind.ESNext ? "import" : "require", "types"];
@@ -124606,7 +124614,7 @@ var ts;
                 case ts.ModuleKind.CommonJS:
                     if (file.packageJsonScope) {
                         (result !== null && result !== void 0 ? result : (result = [])).push(ts.chainDiagnosticMessages(
-                        /*details*/ undefined, file.packageJsonScope.packageJsonContent.type ?
+                        /*details*/ undefined, file.packageJsonScope.contents.packageJsonContent.type ?
                             ts.Diagnostics.File_is_CommonJS_module_because_0_has_field_type_whose_value_is_not_module :
                             ts.Diagnostics.File_is_CommonJS_module_because_0_does_not_have_field_type, toFileName(ts.last(file.packageJsonLocations), fileNameConvertor)));
                     }
diff --git a/package-lock.json b/package-lock.json
index 30f979747957..42ea199cad21 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -63,7 +63,7 @@
                 "ms": "^2.1.3",
                 "node-fetch": "^2.6.7",
                 "source-map-support": "latest",
-                "typescript": "^4.8.3",
+                "typescript": "^4.8.4",
                 "vinyl": "latest",
                 "which": "^2.0.2",
                 "xml2js": "^0.4.23"
diff --git a/package.json b/package.json
index 1424487c9a2e..4fd407ca8d0d 100644
--- a/package.json
+++ b/package.json
@@ -89,7 +89,7 @@
         "ms": "^2.1.3",
         "node-fetch": "^2.6.7",
         "source-map-support": "latest",
-        "typescript": "^4.8.3",
+        "typescript": "^4.8.4",
         "vinyl": "latest",
         "which": "^2.0.2",
         "xml2js": "^0.4.23"