Update tests

packages/babel-parser/test/fixtures/es2015/yield/parameter-default-inside-arrow-inside-generator-1/output.json

@@ -2,7 +2,7 @@
   "type": "File",
   "start":0,"end":39,"loc":{"start":{"line":1,"column":0},"end":{"line":3,"column":1}},
   "errors": [
-    "SyntaxError: Yield cannot be used as name inside a generator function (2:7)"
+    "SyntaxError: Can not use 'yield' as identifier inside a generator (2:7)"
   ],
   "program": {
     "type": "Program",

packages/babel-parser/test/fixtures/es2015/yield/parameter-default-inside-arrow-inside-generator-2/output.json

@@ -2,7 +2,7 @@
   "type": "File",
   "start":0,"end":53,"loc":{"start":{"line":1,"column":0},"end":{"line":3,"column":1}},
   "errors": [
-    "SyntaxError: Yield cannot be used as name inside a generator function (2:15)"
+    "SyntaxError: Can not use 'yield' as identifier inside a generator (2:15)"
   ],
   "program": {
     "type": "Program",

packages/babel-parser/test/fixtures/es2015/yield/parameter-default-inside-arrow-inside-generator-3/output.json

@@ -2,7 +2,7 @@
   "type": "File",
   "start":0,"end":42,"loc":{"start":{"line":1,"column":0},"end":{"line":3,"column":1}},
   "errors": [
-    "SyntaxError: Yield cannot be used as name inside a generator function (2:7)"
+    "SyntaxError: Can not use 'yield' as identifier inside a generator (2:7)"
   ],
   "program": {
     "type": "Program",

packages/babel-parser/test/fixtures/es2015/yield/parameter-default-inside-arrow-inside-generator-4/output.json

@@ -2,7 +2,7 @@
   "type": "File",
   "start":0,"end":49,"loc":{"start":{"line":1,"column":0},"end":{"line":3,"column":1}},
   "errors": [
-    "SyntaxError: Yield cannot be used as name inside a generator function (2:17)"
+    "SyntaxError: Can not use 'yield' as identifier inside a generator (2:17)"
   ],
   "program": {
     "type": "Program",

packages/babel-parser/test/fixtures/es2015/yield/parameter-default-inside-arrow-inside-generator-5/output.json

@@ -2,7 +2,7 @@
   "type": "File",
   "start":0,"end":47,"loc":{"start":{"line":1,"column":0},"end":{"line":3,"column":1}},
   "errors": [
-    "SyntaxError: Yield cannot be used as name inside a generator function (2:8)",
+    "SyntaxError: Can not use 'yield' as identifier inside a generator (2:8)",
     "SyntaxError: Binding invalid left-hand side in function parameter list (2:8)"
   ],
   "program": {

packages/babel-parser/test/fixtures/es2015/yield/parameter-default-inside-arrow-inside-generator-6/output.json

@@ -2,7 +2,7 @@
   "type": "File",
   "start":0,"end":41,"loc":{"start":{"line":1,"column":0},"end":{"line":3,"column":1}},
   "errors": [
-    "SyntaxError: Yield cannot be used as name inside a generator function (2:8)"
+    "SyntaxError: Can not use 'yield' as identifier inside a generator (2:8)"
   ],
   "program": {
     "type": "Program",

packages/babel-parser/test/fixtures/es2015/yield/parameter-name-arrow-inside-generator-1/output.json

@@ -2,7 +2,7 @@
   "type": "File",
   "start":0,"end":35,"loc":{"start":{"line":1,"column":0},"end":{"line":3,"column":1}},
   "errors": [
-    "SyntaxError: Yield cannot be used as name inside a generator function (2:3)",
+    "SyntaxError: Can not use 'yield' as identifier inside a generator (2:3)",
     "SyntaxError: Binding invalid left-hand side in function parameter list (2:3)"
   ],
   "program": {

packages/babel-parser/test/fixtures/es2015/yield/parameter-name-arrow-inside-generator-2/output.json

@@ -2,7 +2,7 @@
   "type": "File",
   "start":0,"end":38,"loc":{"start":{"line":1,"column":0},"end":{"line":3,"column":1}},
   "errors": [
-    "SyntaxError: Yield cannot be used as name inside a generator function (2:3)",
+    "SyntaxError: Can not use 'yield' as identifier inside a generator (2:3)",
     "SyntaxError: Binding invalid left-hand side in function parameter list (2:3)"
   ],
   "program": {

packages/babel-parser/test/fixtures/es2015/yield/parameter-name-arrow-inside-generator-3/output.json

@@ -2,7 +2,7 @@
   "type": "File",
   "start":0,"end":41,"loc":{"start":{"line":1,"column":0},"end":{"line":3,"column":1}},
   "errors": [
-    "SyntaxError: Yield cannot be used as name inside a generator function (2:9)",
+    "SyntaxError: Can not use 'yield' as identifier inside a generator (2:9)",
     "SyntaxError: Binding invalid left-hand side in function parameter list (2:9)"
   ],
   "program": {

packages/babel-parser/test/fixtures/es2017/async-functions/async-await-as-arrow-binding-identifier/output.json

@@ -2,7 +2,7 @@
   "type": "File",
   "start":0,"end":17,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":17}},
   "errors": [
-    "SyntaxError: Await cannot be used as name inside an async function (1:6)"
+    "SyntaxError: Can not use 'await' as identifier inside an async function (1:6)"
   ],
   "program": {
     "type": "Program",

packages/babel-parser/test/fixtures/es2017/async-functions/await-binding-inside-arrow-params-inside-async-arrow-params/output.json

@@ -2,7 +2,7 @@
   "type": "File",
   "start":0,"end":36,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":36}},
   "errors": [
-    "SyntaxError: Await cannot be used as name inside an async function (1:20)"
+    "SyntaxError: Can not use 'await' as identifier inside an async function (1:20)"
   ],
   "program": {
     "type": "Program",

packages/babel-parser/test/fixtures/es2017/async-functions/await-inside-arguments-of-async-call-inside-parameters-of-async-arrow-function/output.json

@@ -2,7 +2,7 @@
   "type": "File",
   "start":0,"end":63,"loc":{"start":{"line":1,"column":0},"end":{"line":3,"column":1}},
   "errors": [
-    "SyntaxError: Await cannot be used as name inside an async function (2:23)"
+    "SyntaxError: Can not use 'await' as identifier inside an async function (2:23)"
   ],
   "program": {
     "type": "Program",

packages/babel-parser/test/fixtures/es2017/async-functions/await-inside-parameters-of-nested-arrow-function/output.json

@@ -2,7 +2,7 @@
   "type": "File",
   "start":0,"end":46,"loc":{"start":{"line":1,"column":0},"end":{"line":3,"column":1}},
   "errors": [
-    "SyntaxError: Await cannot be used as name inside an async function (2:7)"
+    "SyntaxError: Can not use 'await' as identifier inside an async function (2:7)"
   ],
   "program": {
     "type": "Program",

packages/babel-parser/test/fixtures/es2017/async-functions/await-inside-parameters-of-nested-async-arrow-function/output.json

@@ -2,7 +2,7 @@
   "type": "File",
   "start":0,"end":52,"loc":{"start":{"line":1,"column":0},"end":{"line":3,"column":1}},
   "errors": [
-    "SyntaxError: Await cannot be used as name inside an async function (2:13)"
+    "SyntaxError: Can not use 'await' as identifier inside an async function (2:13)"
   ],
   "program": {
     "type": "Program",

packages/babel-parser/test/fixtures/esprima/es2015-yield/invalid-yield-generator-arrow-default/output.json

@@ -2,7 +2,7 @@
   "type": "File",
   "start":0,"end":38,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":38}},
   "errors": [
-    "SyntaxError: Yield cannot be used as name inside a generator function (1:21)"
+    "SyntaxError: Can not use 'yield' as identifier inside a generator (1:21)"
   ],
   "program": {
     "type": "Program",

packages/babel-parser/test/fixtures/esprima/es2015-yield/invalid-yield-generator-arrow-parameter/output.json

@@ -2,7 +2,7 @@
   "type": "File",
   "start":0,"end":30,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":30}},
   "errors": [
-    "SyntaxError: Yield cannot be used as name inside a generator function (1:16)",
+    "SyntaxError: Can not use 'yield' as identifier inside a generator (1:16)",
     "SyntaxError: Binding invalid left-hand side in function parameter list (1:16)"
   ],
   "program": {

packages/babel-parser/test/fixtures/esprima/es2015-yield/invalid-yield-generator-arrow-parameters/output.json

@@ -2,7 +2,7 @@
   "type": "File",
   "start":0,"end":39,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":39}},
   "errors": [
-    "SyntaxError: Yield cannot be used as name inside a generator function (1:25)",
+    "SyntaxError: Can not use 'yield' as identifier inside a generator (1:25)",
     "SyntaxError: Binding invalid left-hand side in function parameter list (1:25)"
   ],
   "program": {

packages/babel-parser/test/fixtures/esprima/es2015-yield/yield-generator-arrow-default/output.json

@@ -2,7 +2,7 @@
   "type": "File",
   "start":0,"end":35,"loc":{"start":{"line":1,"column":0},"end":{"line":1,"column":35}},
   "errors": [
-    "SyntaxError: Yield cannot be used as name inside a generator function (1:21)"
+    "SyntaxError: Can not use 'yield' as identifier inside a generator (1:21)"
   ],
   "program": {
     "type": "Program",