Merge pull request #1017 from anba/expr-lookahead-restr

Expression statement lookahead restriction and identifier tests

src/async-functions/await-as-binding-identifier-escaped.case

@@ -0,0 +1,21 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-identifiers-static-semantics-early-errors
+desc: >
+  await is a reserved keyword within generator function bodies and may not be
+  used as a binding identifier.
+info: |
+  BindingIdentifier : Identifier
+
+  It is a Syntax Error if this production has a [Await] parameter and
+  StringValue of Identifier is "await".
+negative:
+  phase: early
+  type: SyntaxError
+template: syntax
+---*/
+
+//- body
+  var \u0061wait;

src/async-functions/await-as-binding-identifier.case

@@ -0,0 +1,21 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-identifiers-static-semantics-early-errors
+desc: >
+  await is a reserved keyword within generator function bodies and may not be
+  used as a binding identifier.
+info: |
+  BindingIdentifier : Identifier
+
+  It is a Syntax Error if this production has a [Await] parameter and
+  StringValue of Identifier is "await".
+negative:
+  phase: early
+  type: SyntaxError
+template: syntax
+---*/
+
+//- body
+  var await;

src/async-functions/await-as-identifier-reference-escaped.case

@@ -0,0 +1,21 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-identifiers-static-semantics-early-errors
+desc: >
+  await is a reserved keyword within generator function bodies and may not be
+  used as an identifier reference.
+info: |
+  IdentifierReference : Identifier
+
+  It is a Syntax Error if this production has a [Await] parameter and
+  StringValue of Identifier is "await".
+negative:
+  phase: early
+  type: SyntaxError
+template: syntax
+---*/
+
+//- body
+  void \u0061wait;

src/async-functions/await-as-identifier-reference.case

@@ -0,0 +1,21 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-identifiers-static-semantics-early-errors
+desc: >
+  await is a reserved keyword within generator function bodies and may not be
+  used as an identifier reference.
+info: |
+  IdentifierReference : Identifier
+
+  It is a Syntax Error if this production has a [Await] parameter and
+  StringValue of Identifier is "await".
+negative:
+  phase: early
+  type: SyntaxError
+template: syntax
+---*/
+
+//- body
+  void await;

src/async-functions/await-as-label-identifier-escaped.case

@@ -0,0 +1,21 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-identifiers-static-semantics-early-errors
+desc: >
+  await is a reserved keyword within generator function bodies and may not be
+  used as a label identifier.
+info: |
+  LabelIdentifier : Identifier
+
+  It is a Syntax Error if this production has a [Await] parameter and
+  StringValue of Identifier is "await".
+negative:
+  phase: early
+  type: SyntaxError
+template: syntax
+---*/
+
+//- body
+  \u0061wait: ;

src/async-functions/await-as-label-identifier.case

@@ -0,0 +1,21 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-identifiers-static-semantics-early-errors
+desc: >
+  await is a reserved keyword within generator function bodies and may not be
+  used as a label identifier.
+info: |
+  LabelIdentifier : Identifier
+
+  It is a Syntax Error if this production has a [Await] parameter and
+  StringValue of Identifier is "await".
+negative:
+  phase: early
+  type: SyntaxError
+template: syntax
+---*/
+
+//- body
+  await: ;

src/async-functions/syntax/async-arrow.template

@@ -0,0 +1,22 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/expressions/async-arrow-function/
+name: Async arrow function
+esid: prod-AsyncArrowFunction
+info: |
+  Async Arrow Function Definitions
+
+  AsyncArrowFunction[In, Yield, Await]:
+    async [no LineTerminator here] AsyncArrowBindingIdentifier[?Yield] [no LineTerminator here] => AsyncConciseBody[?In]
+    CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await] [no LineTerminator here] => AsyncConciseBody[?In]
+
+  AsyncConciseBody[In]:
+    { AsyncFunctionBody }
+features: [async-functions]
+---*/
+
+async() => {
+  /*{ body }*/
+};

src/async-functions/syntax/async-class-decl-method.template

@@ -0,0 +1,24 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/statements/class/async-method-
+name: Async method as a ClassDeclaration element
+esid: prod-AsyncMethod
+info: |
+  ClassElement :
+    MethodDefinition
+
+  MethodDefinition :
+    AsyncMethod
+
+  Async Function Definitions
+
+  AsyncMethod :
+    async [no LineTerminator here] PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+features: [async-functions]
+---*/
+
+class C { async method() {
+    /*{ body }*/
+}}

src/async-functions/syntax/async-class-decl-static-method.template

@@ -0,0 +1,24 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/statements/class/async-method-static-
+name: Static async method as a ClassDeclaration element
+esid: prod-AsyncMethod
+info: |
+  ClassElement :
+    static MethodDefinition
+
+  MethodDefinition :
+    AsyncMethod
+
+  Async Function Definitions
+
+  AsyncMethod :
+    async [no LineTerminator here] PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+features: [async-functions]
+---*/
+
+class C { static async method() {
+    /*{ body }*/
+}}

src/async-functions/syntax/async-class-expr-method.template

@@ -0,0 +1,24 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/expressions/class/async-method-
+name: Async method as a ClassExpression element
+esid: prod-AsyncMethod
+info: |
+  ClassElement :
+    MethodDefinition
+
+  MethodDefinition :
+    AsyncMethod
+
+  Async Function Definitions
+
+  AsyncMethod :
+    async [no LineTerminator here] PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+features: [async-functions]
+---*/
+
+var C = class { async method() {
+    /*{ body }*/
+}};

src/async-functions/syntax/async-class-expr-static-method.template

@@ -0,0 +1,24 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/expressions/class/async-method-static-
+name: Static async method as a ClassExpression element
+esid: prod-AsyncMethod
+info: |
+  ClassElement :
+    static MethodDefinition
+
+  MethodDefinition :
+    AsyncMethod
+
+  Async Function Definitions
+
+  AsyncMethod :
+    async [no LineTerminator here] PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+features: [async-functions]
+---*/
+
+var C = class { static async method() {
+    /*{ body }*/
+}};

src/async-functions/syntax/async-declaration.template

@@ -0,0 +1,18 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/statements/async-function/
+name: Async function declaration
+esid: prod-AsyncFunctionDeclaration
+info: |
+  Async Function Definitions
+
+  AsyncFunctionDeclaration:
+    async [no LineTerminator here] function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody }
+features: [async-functions]
+---*/
+
+async function fn() {
+  /*{ body }*/
+}

src/async-functions/syntax/async-expression-named.template

@@ -0,0 +1,18 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/expressions/async-function/named-
+name: Named async function expression
+esid: prod-AsyncFunctionExpression
+info: |
+  Async Function Definitions
+
+  AsyncFunctionExpression :
+    async [no LineTerminator here] function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody }
+features: [async-functions]
+---*/
+
+var fn = async function fn() {
+  /*{ body }*/
+};

src/async-functions/syntax/async-expression.template

@@ -0,0 +1,18 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/expressions/async-function/
+name: Unnamed async function expression
+esid: prod-AsyncFunctionExpression
+info: |
+  Async Function Definitions
+
+  AsyncFunctionExpression :
+    async [no LineTerminator here] function ( FormalParameters ) { AsyncFunctionBody }
+features: [async-functions]
+---*/
+
+var fn = async function () {
+  /*{ body }*/
+};

src/async-functions/syntax/async-obj-method.template

@@ -0,0 +1,20 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/expressions/object/method-definition/async-
+name: Async method
+esid: prod-AsyncMethod
+info: |
+  Async Function Definitions
+
+  AsyncMethod :
+    async [no LineTerminator here] PropertyName ( UniqueFormalParameters ) { AsyncFunctionBody }
+features: [async-functions]
+---*/
+
+var obj = {
+  async method() {
+    /*{ body }*/
+  }
+};

src/async-generators/await-as-binding-identifier-escaped.case

@@ -0,0 +1,21 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-identifiers-static-semantics-early-errors
+desc: >
+  await is a reserved keyword within generator function bodies and may not be
+  used as a binding identifier.
+info: |
+  BindingIdentifier : Identifier
+
+  It is a Syntax Error if this production has a [Await] parameter and
+  StringValue of Identifier is "await".
+negative:
+  phase: early
+  type: SyntaxError
+template: syntax
+---*/
+
+//- body
+  var \u0061wait;

src/async-generators/await-as-binding-identifier.case

@@ -0,0 +1,21 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-identifiers-static-semantics-early-errors
+desc: >
+  await is a reserved keyword within generator function bodies and may not be
+  used as a binding identifier.
+info: |
+  BindingIdentifier : Identifier
+
+  It is a Syntax Error if this production has a [Await] parameter and
+  StringValue of Identifier is "await".
+negative:
+  phase: early
+  type: SyntaxError
+template: syntax
+---*/
+
+//- body
+  var await;

src/async-generators/await-as-identifier-reference-escaped.case

@@ -0,0 +1,21 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-identifiers-static-semantics-early-errors
+desc: >
+  await is a reserved keyword within generator function bodies and may not be
+  used as an identifier reference.
+info: |
+  IdentifierReference : Identifier
+
+  It is a Syntax Error if this production has a [Await] parameter and
+  StringValue of Identifier is "await".
+negative:
+  phase: early
+  type: SyntaxError
+template: syntax
+---*/
+
+//- body
+  void \u0061wait;

src/async-generators/await-as-identifier-reference.case

@@ -0,0 +1,21 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-identifiers-static-semantics-early-errors
+desc: >
+  await is a reserved keyword within generator function bodies and may not be
+  used as an identifier reference.
+info: |
+  IdentifierReference : Identifier
+
+  It is a Syntax Error if this production has a [Await] parameter and
+  StringValue of Identifier is "await".
+negative:
+  phase: early
+  type: SyntaxError
+template: syntax
+---*/
+
+//- body
+  void await;

src/async-generators/await-as-label-identifier-escaped.case

@@ -0,0 +1,21 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-identifiers-static-semantics-early-errors
+desc: >
+  await is a reserved keyword within generator function bodies and may not be
+  used as a label identifier.
+info: |
+  LabelIdentifier : Identifier
+
+  It is a Syntax Error if this production has a [Await] parameter and
+  StringValue of Identifier is "await".
+negative:
+  phase: early
+  type: SyntaxError
+template: syntax
+---*/
+
+//- body
+  \u0061wait: ;

src/async-generators/await-as-label-identifier.case

@@ -0,0 +1,21 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-identifiers-static-semantics-early-errors
+desc: >
+  await is a reserved keyword within generator function bodies and may not be
+  used as a label identifier.
+info: |
+  LabelIdentifier : Identifier
+
+  It is a Syntax Error if this production has a [Await] parameter and
+  StringValue of Identifier is "await".
+negative:
+  phase: early
+  type: SyntaxError
+template: syntax
+---*/
+
+//- body
+  await: ;

src/async-generators/syntax/async-class-decl-method.template

@@ -0,0 +1,24 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/statements/class/async-gen-method-
+name: Async Generator method as a ClassDeclaration element
+esid: prod-AsyncGeneratorMethod
+info: |
+  ClassElement :
+    MethodDefinition
+
+  MethodDefinition :
+    AsyncGeneratorMethod
+
+  Async Generator Function Definitions
+
+  AsyncGeneratorMethod :
+    async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+features: [async-iteration]
+---*/
+
+class C { async *gen() {
+    /*{ body }*/
+}}

src/async-generators/syntax/async-class-decl-static-method.template

@@ -0,0 +1,24 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/statements/class/async-gen-method-static-
+name: Static async generator method as a ClassDeclaration element
+esid: prod-AsyncGeneratorMethod
+info: |
+  ClassElement :
+    static MethodDefinition
+
+  MethodDefinition :
+    AsyncGeneratorMethod
+
+  Async Generator Function Definitions
+
+  AsyncGeneratorMethod :
+    async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+features: [async-iteration]
+---*/
+
+class C { static async *gen() {
+    /*{ body }*/
+}}

src/async-generators/syntax/async-class-expr-method.template

@@ -0,0 +1,24 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/expressions/class/async-gen-method-
+name: Async generator method as a ClassExpression element
+esid: prod-AsyncGeneratorMethod
+info: |
+  ClassElement :
+    MethodDefinition
+
+  MethodDefinition :
+    AsyncGeneratorMethod
+
+  Async Generator Function Definitions
+
+  AsyncGeneratorMethod :
+    async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+features: [async-iteration]
+---*/
+
+var C = class { async *gen() {
+    /*{ body }*/
+}};

src/async-generators/syntax/async-class-expr-static-method.template

@@ -0,0 +1,24 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/expressions/class/async-gen-method-static-
+name: Static async generator method as a ClassExpression element
+esid: prod-AsyncGeneratorMethod
+info: |
+  ClassElement :
+    static MethodDefinition
+
+  MethodDefinition :
+    AsyncGeneratorMethod
+
+  Async Generator Function Definitions
+
+  AsyncGeneratorMethod :
+    async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+features: [async-iteration]
+---*/
+
+var C = class { static async *gen() {
+    /*{ body }*/
+}};

src/async-generators/syntax/async-declaration.template

@@ -0,0 +1,19 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/statements/async-generator/
+name: Async generator Function declaration
+esid: prod-AsyncGeneratorDeclaration
+info: |
+  Async Generator Function Definitions
+
+  AsyncGeneratorDeclaration:
+    async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
+      AsyncGeneratorBody }
+features: [async-iteration]
+---*/
+
+async function *gen() {
+  /*{ body }*/
+}

src/async-generators/syntax/async-expression-named.template

@@ -0,0 +1,19 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/expressions/async-generator/named-
+name: Named async generator expression
+esid: prod-AsyncGeneratorExpression
+info: |
+  Async Generator Function Definitions
+
+  AsyncGeneratorExpression :
+    async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
+      AsyncGeneratorBody }
+features: [async-iteration]
+---*/
+
+var gen = async function *g() {
+  /*{ body }*/
+};

src/async-generators/syntax/async-expression.template

@@ -0,0 +1,19 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/expressions/async-generator/
+name: Unnamed async generator expression
+esid: prod-AsyncGeneratorExpression
+info: |
+  Async Generator Function Definitions
+
+  AsyncGeneratorExpression :
+    async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
+      AsyncGeneratorBody }
+features: [async-iteration]
+---*/
+
+var gen = async function *() {
+  /*{ body }*/
+};

src/async-generators/syntax/async-obj-method.template

@@ -0,0 +1,19 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/object/method-definition/async-gen-
+name: Async generator method
+esid: prod-AsyncGeneratorMethod
+info: |
+  Async Generator Function Definitions
+
+  AsyncGeneratorMethod :
+    async [no LineTerminator here] * PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+features: [async-iteration]
+---*/
+
+var obj = {
+  async *method() {
+    /*{ body }*/
+  }
+};

src/async-generators/yield-as-binding-identifier-escaped.case

@@ -0,0 +1,21 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-identifiers-static-semantics-early-errors
+desc: >
+  yield is a reserved keyword within generator function bodies and may not be
+  used as a binding identifier.
+info: |
+  BindingIdentifier : Identifier
+
+  It is a Syntax Error if this production has a [Yield] parameter and
+  StringValue of Identifier is "yield".
+negative:
+  phase: early
+  type: SyntaxError
+template: syntax
+---*/
+
+//- body
+  var yi\u0065ld;

src/async-generators/yield-as-binding-identifier.case

@@ -0,0 +1,21 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-identifiers-static-semantics-early-errors
+desc: >
+  yield is a reserved keyword within generator function bodies and may not be
+  used as a binding identifier.
+info: |
+  BindingIdentifier : Identifier
+
+  It is a Syntax Error if this production has a [Yield] parameter and
+  StringValue of Identifier is "yield".
+negative:
+  phase: early
+  type: SyntaxError
+template: syntax
+---*/
+
+//- body
+  var yield;

src/async-generators/yield-as-identifier-reference-escaped.case

@@ -0,0 +1,21 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-identifiers-static-semantics-early-errors
+desc: >
+  yield is a reserved keyword within generator function bodies and may not be
+  used as an identifier reference.
+info: |
+  IdentifierReference : Identifier
+
+  It is a Syntax Error if this production has a [Yield] parameter and
+  StringValue of Identifier is "yield".
+negative:
+  phase: early
+  type: SyntaxError
+template: syntax
+---*/
+
+//- body
+  void yi\u0065ld;

src/async-generators/yield-as-identifier-reference.case

@@ -0,0 +1,21 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-identifiers-static-semantics-early-errors
+desc: >
+  yield is a reserved keyword within generator function bodies and may not be
+  used as an identifier reference.
+info: |
+  IdentifierReference : Identifier
+
+  It is a Syntax Error if this production has a [Yield] parameter and
+  StringValue of Identifier is "yield".
+negative:
+  phase: early
+  type: SyntaxError
+template: syntax
+---*/
+
+//- body
+  void yield;

src/async-generators/yield-as-label-identifier-escaped.case

@@ -0,0 +1,21 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-identifiers-static-semantics-early-errors
+desc: >
+  yield is a reserved keyword within generator function bodies and may not be
+  used as a label identifier.
+info: |
+  LabelIdentifier : Identifier
+
+  It is a Syntax Error if this production has a [Yield] parameter and
+  StringValue of Identifier is "yield".
+negative:
+  phase: early
+  type: SyntaxError
+template: syntax
+---*/
+
+//- body
+  yi\u0065ld: ;

src/async-generators/yield-as-label-identifier.case

@@ -0,0 +1,21 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-identifiers-static-semantics-early-errors
+desc: >
+  yield is a reserved keyword within generator function bodies and may not be
+  used as a label identifier.
+info: |
+  LabelIdentifier : Identifier
+
+  It is a Syntax Error if this production has a [Yield] parameter and
+  StringValue of Identifier is "yield".
+negative:
+  phase: early
+  type: SyntaxError
+template: syntax
+---*/
+
+//- body
+  yield: ;

src/generators/syntax/class-decl-method.template

@@ -0,0 +1,22 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/class/gen-method-
+name: Generator method as a ClassDeclaration element
+esid: prod-GeneratorMethod
+info: |
+  ClassElement :
+    MethodDefinition
+
+  MethodDefinition :
+    GeneratorMethod
+
+  14.4 Generator Function Definitions
+
+  GeneratorMethod :
+    * PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+---*/
+
+class C { *gen() {
+    /*{ body }*/
+}}

src/generators/syntax/class-decl-static-method.template

@@ -0,0 +1,22 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/class/gen-method-static-
+name: Static generator method as a ClassDeclaration element
+esid: prod-GeneratorMethod
+info: |
+  ClassElement :
+    static MethodDefinition
+
+  MethodDefinition :
+    GeneratorMethod
+
+  14.4 Generator Function Definitions
+
+  GeneratorMethod :
+    * PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+---*/
+
+class C {static *gen() {
+    /*{ body }*/
+}}

src/generators/syntax/class-expr-method.template

@@ -0,0 +1,22 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/class/gen-method-
+name: Generator method as a ClassExpression element
+esid: prod-GeneratorMethod
+info: |
+  ClassElement :
+    MethodDefinition
+
+  MethodDefinition :
+    GeneratorMethod
+
+  14.4 Generator Function Definitions
+
+  GeneratorMethod :
+    * PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+---*/
+
+var C = class {*gen() {
+    /*{ body }*/
+}};

src/generators/syntax/class-expr-static-method.template

@@ -0,0 +1,22 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/class/gen-method-static-
+name: Static generator method as a ClassExpression element
+esid: prod-GeneratorMethod
+info: |
+  ClassElement :
+    static MethodDefinition
+
+  MethodDefinition :
+    GeneratorMethod
+
+  14.4 Generator Function Definitions
+
+  GeneratorMethod :
+    * PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+---*/
+
+var C = class { static *gen() {
+    /*{ body }*/
+}};

src/generators/syntax/declaration.template

@@ -0,0 +1,16 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/generators/
+name: Generator Function declaration
+esid: prod-GeneratorDeclaration
+info: |
+  14.4 Generator Function Definitions
+
+  GeneratorDeclaration :
+    function * BindingIdentifier ( FormalParameters ) { GeneratorBody }
+---*/
+
+function *gen() {
+  /*{ body }*/
+}

src/generators/syntax/expression-named.template

@@ -0,0 +1,16 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/generators/named-
+name: Named generator expression
+esid: prod-GeneratorExpression
+info: |
+  14.4 Generator Function Definitions
+
+  GeneratorExpression:
+    function * BindingIdentifier opt ( FormalParameters ) { GeneratorBody }
+---*/
+
+var gen = function *g() {
+  /*{ body }*/
+};

src/generators/syntax/expression.template

@@ -0,0 +1,16 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/generators/
+name: Unnamed generator expression
+esid: prod-GeneratorExpression
+info: |
+  14.4 Generator Function Definitions
+
+  GeneratorExpression:
+    function * BindingIdentifier opt ( FormalParameters ) { GeneratorBody }
+---*/
+
+var gen = function *() {
+  /*{ body }*/
+};

src/generators/syntax/obj-method.template

@@ -0,0 +1,18 @@
+// Copyright (C) 2017 the V8 project authors. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/object/method-definition/gen-
+name: Generator method
+esid: prod-GeneratorMethod
+info: |
+  14.4 Generator Function Definitions
+
+  GeneratorMethod[Yield, Await]:
+    * PropertyName[?Yield, ?Await] ( UniqueFormalParameters[+Yield, ~Await] ) { GeneratorBody }
+---*/
+
+var obj = {
+  *method() {
+    /*{ body }*/
+  }
+};

src/generators/yield-as-binding-identifier-escaped.case

@@ -0,0 +1,21 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-identifiers-static-semantics-early-errors
+desc: >
+  yield is a reserved keyword within generator function bodies and may not be
+  used as a binding identifier.
+info: |
+  BindingIdentifier : Identifier
+
+  It is a Syntax Error if this production has a [Yield] parameter and
+  StringValue of Identifier is "yield".
+negative:
+  phase: early
+  type: SyntaxError
+template: syntax
+---*/
+
+//- body
+  var yi\u0065ld;

src/generators/yield-as-binding-identifier.case

@@ -0,0 +1,21 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-identifiers-static-semantics-early-errors
+desc: >
+  yield is a reserved keyword within generator function bodies and may not be
+  used as a binding identifier.
+info: |
+  BindingIdentifier : Identifier
+
+  It is a Syntax Error if this production has a [Yield] parameter and
+  StringValue of Identifier is "yield".
+negative:
+  phase: early
+  type: SyntaxError
+template: syntax
+---*/
+
+//- body
+  var yield;

src/generators/yield-as-identifier-reference-escaped.case

@@ -0,0 +1,21 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-identifiers-static-semantics-early-errors
+desc: >
+  yield is a reserved keyword within generator function bodies and may not be
+  used as an identifier reference.
+info: |
+  IdentifierReference : Identifier
+
+  It is a Syntax Error if this production has a [Yield] parameter and
+  StringValue of Identifier is "yield".
+negative:
+  phase: early
+  type: SyntaxError
+template: syntax
+---*/
+
+//- body
+  void yi\u0065ld;

src/generators/yield-as-identifier-reference.case

@@ -0,0 +1,21 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-identifiers-static-semantics-early-errors
+desc: >
+  yield is a reserved keyword within generator function bodies and may not be
+  used as an identifier reference.
+info: |
+  IdentifierReference : Identifier
+
+  It is a Syntax Error if this production has a [Yield] parameter and
+  StringValue of Identifier is "yield".
+negative:
+  phase: early
+  type: SyntaxError
+template: syntax
+---*/
+
+//- body
+  void yield;

src/generators/yield-as-label-identifier-escaped.case

@@ -0,0 +1,21 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-identifiers-static-semantics-early-errors
+desc: >
+  yield is a reserved keyword within generator function bodies and may not be
+  used as a label identifier.
+info: |
+  LabelIdentifier : Identifier
+
+  It is a Syntax Error if this production has a [Yield] parameter and
+  StringValue of Identifier is "yield".
+negative:
+  phase: early
+  type: SyntaxError
+template: syntax
+---*/
+
+//- body
+  yi\u0065ld: ;

src/generators/yield-as-label-identifier.case

@@ -0,0 +1,21 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-identifiers-static-semantics-early-errors
+desc: >
+  yield is a reserved keyword within generator function bodies and may not be
+  used as a label identifier.
+info: |
+  LabelIdentifier : Identifier
+
+  It is a Syntax Error if this production has a [Yield] parameter and
+  StringValue of Identifier is "yield".
+negative:
+  phase: early
+  type: SyntaxError
+template: syntax
+---*/
+
+//- body
+  yield: ;

test/annexB/language/statements/labeled/function-declaration.js

@@ -9,3 +9,4 @@ flags: [noStrict]
 ---*/
 label: function g() {}
 
+label1: label2: function f() {}

test/language/export/escaped-as-export-specifier.js

@@ -0,0 +1,23 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-grammar-notation
+description: >
+  The `as` contextual keyword must not contain Unicode escape sequences.
+info: >
+  Terminal symbols of the lexical, RegExp, and numeric string grammars are shown
+  in fixed width font, both in the productions of the grammars and throughout this
+  specification whenever the text directly refers to such a terminal symbol. These
+  are to appear in a script exactly as written. All terminal symbol code points
+  specified in this way are to be understood as the appropriate Unicode code points
+  from the Basic Latin range, as opposed to any similar-looking code points from
+  other Unicode ranges.
+negative:
+  phase: early
+  type: SyntaxError
+flags: [module]
+---*/
+
+export var a = 0;
+export {a \u0061s b} from "./escaped-as-export-specifier.js";

test/language/export/escaped-default.js

@@ -0,0 +1,22 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-grammar-notation
+description: >
+  The `default` keyword must not contain Unicode escape sequences.
+info: >
+  Terminal symbols of the lexical, RegExp, and numeric string grammars are shown
+  in fixed width font, both in the productions of the grammars and throughout this
+  specification whenever the text directly refers to such a terminal symbol. These
+  are to appear in a script exactly as written. All terminal symbol code points
+  specified in this way are to be understood as the appropriate Unicode code points
+  from the Basic Latin range, as opposed to any similar-looking code points from
+  other Unicode ranges.
+negative:
+  phase: early
+  type: SyntaxError
+flags: [module]
+---*/
+
+export d\u0065fault 0;

test/language/export/escaped-from.js

@@ -0,0 +1,22 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-grammar-notation
+description: >
+  The `from` contextual keyword must not contain Unicode escape sequences.
+info: >
+  Terminal symbols of the lexical, RegExp, and numeric string grammars are shown
+  in fixed width font, both in the productions of the grammars and throughout this
+  specification whenever the text directly refers to such a terminal symbol. These
+  are to appear in a script exactly as written. All terminal symbol code points
+  specified in this way are to be understood as the appropriate Unicode code points
+  from the Basic Latin range, as opposed to any similar-looking code points from
+  other Unicode ranges.
+negative:
+  phase: early
+  type: SyntaxError
+flags: [module]
+---*/
+
+export {} \u0066rom "./escaped-from.js";

test/language/expressions/assignment/11.13.1-1-1.js

@@ -1,15 +0,0 @@
-// Copyright (c) 2012 Ecma International.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-info: PutValue operates only on references (see step 1)
-es5id: 11.13.1-1-1
-description: >
-    simple assignment throws ReferenceError if LeftHandSide is not a
-    reference (number)
----*/
-
-
-assert.throws(ReferenceError, function() {
-    eval("42 = 42");
-});

test/language/expressions/assignment/11.13.1-1-2.js

@@ -1,15 +0,0 @@
-// Copyright (c) 2012 Ecma International.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-info: PutValue operates only on references (see step 1).
-es5id: 11.13.1-1-2
-description: >
-    simple assignment throws ReferenceError if LeftHandSide is not a
-    reference (string)
----*/
-
-
-assert.throws(ReferenceError, function() {
-    eval("'x' = 42");
-});

test/language/expressions/assignment/11.13.1-1-3.js

@@ -1,15 +0,0 @@
-// Copyright (c) 2012 Ecma International.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-info: PutValue operates only on references (see step 1).
-es5id: 11.13.1-1-3
-description: >
-    simple assignment throws ReferenceError if LeftHandSide is not a
-    reference (boolean)
----*/
-
-
-assert.throws(ReferenceError, function() {
-    eval("true = 42");
-});

test/language/expressions/assignment/11.13.1-1-4.js

@@ -1,15 +0,0 @@
-// Copyright (c) 2012 Ecma International.  All rights reserved.
-// This code is governed by the BSD license found in the LICENSE file.
-
-/*---
-info: PutValue operates only on references (see step 1).
-es5id: 11.13.1-1-4
-description: >
-    simple assignment throws ReferenceError if LeftHandSide is not a
-    reference (null)
----*/
-
-
-assert.throws(ReferenceError, function() {
-    eval("null = 42");
-});

test/language/expressions/assignment/target-boolean.js

@@ -0,0 +1,21 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-assignment-operators-static-semantics-early-errors
+es5id: 11.13.1-1-3
+description: >
+    simple assignment throws ReferenceError if LeftHandSide is not a
+    reference (boolean)
+info: |
+    AssignmentExpression : LeftHandSideExpression = AssignmentExpression
+
+    It is an early Reference Error if LeftHandSideExpression is neither an
+    ObjectLiteral nor an ArrayLiteral and IsValidSimpleAssignmentTarget of
+    LeftHandSideExpression is false.
+negative:
+  phase: early
+  type: ReferenceError
+---*/
+
+true = 42;

test/language/expressions/assignment/target-null.js

@@ -0,0 +1,21 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-assignment-operators-static-semantics-early-errors
+es5id: 11.13.1-1-4
+description: >
+    simple assignment throws ReferenceError if LeftHandSide is not a
+    reference (null)
+info: |
+    AssignmentExpression : LeftHandSideExpression = AssignmentExpression
+
+    It is an early Reference Error if LeftHandSideExpression is neither an
+    ObjectLiteral nor an ArrayLiteral and IsValidSimpleAssignmentTarget of
+    LeftHandSideExpression is false.
+negative:
+  phase: early
+  type: ReferenceError
+---*/
+
+null = 42;

test/language/expressions/assignment/target-number.js

@@ -0,0 +1,21 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-assignment-operators-static-semantics-early-errors
+es5id: 11.13.1-1-1
+description: >
+    simple assignment throws ReferenceError if LeftHandSide is not a
+    reference (number)
+info: |
+    AssignmentExpression : LeftHandSideExpression = AssignmentExpression
+
+    It is an early Reference Error if LeftHandSideExpression is neither an
+    ObjectLiteral nor an ArrayLiteral and IsValidSimpleAssignmentTarget of
+    LeftHandSideExpression is false.
+negative:
+  phase: early
+  type: ReferenceError
+---*/
+
+42 = 42;

test/language/expressions/assignment/target-string.js

@@ -0,0 +1,21 @@
+// Copyright (c) 2012 Ecma International.  All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-assignment-operators-static-semantics-early-errors
+es5id: 11.13.1-1-2
+description: >
+    simple assignment throws ReferenceError if LeftHandSide is not a
+    reference (string)
+info: |
+    AssignmentExpression : LeftHandSideExpression = AssignmentExpression
+
+    It is an early Reference Error if LeftHandSideExpression is neither an
+    ObjectLiteral nor an ArrayLiteral and IsValidSimpleAssignmentTarget of
+    LeftHandSideExpression is false.
+negative:
+  phase: early
+  type: ReferenceError
+---*/
+
+'x' = 42;

test/language/expressions/async-arrow-function/await-as-binding-identifier-escaped.js

@@ -0,0 +1,33 @@
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-binding-identifier-escaped.case
+// - src/async-functions/syntax/async-arrow.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Async arrow function)
+esid: prod-AsyncArrowFunction
+features: [async-functions]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Arrow Function Definitions
+
+    AsyncArrowFunction[In, Yield, Await]:
+      async [no LineTerminator here] AsyncArrowBindingIdentifier[?Yield] [no LineTerminator here] => AsyncConciseBody[?In]
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await] [no LineTerminator here] => AsyncConciseBody[?In]
+
+    AsyncConciseBody[In]:
+      { AsyncFunctionBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+async() => {
+  var \u0061wait;
+};

test/language/expressions/async-arrow-function/await-as-binding-identifier.js

@@ -0,0 +1,33 @@
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-binding-identifier.case
+// - src/async-functions/syntax/async-arrow.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Async arrow function)
+esid: prod-AsyncArrowFunction
+features: [async-functions]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Arrow Function Definitions
+
+    AsyncArrowFunction[In, Yield, Await]:
+      async [no LineTerminator here] AsyncArrowBindingIdentifier[?Yield] [no LineTerminator here] => AsyncConciseBody[?In]
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await] [no LineTerminator here] => AsyncConciseBody[?In]
+
+    AsyncConciseBody[In]:
+      { AsyncFunctionBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+async() => {
+  var await;
+};

test/language/expressions/async-arrow-function/await-as-identifier-reference-escaped.js

@@ -0,0 +1,33 @@
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-identifier-reference-escaped.case
+// - src/async-functions/syntax/async-arrow.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Async arrow function)
+esid: prod-AsyncArrowFunction
+features: [async-functions]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Arrow Function Definitions
+
+    AsyncArrowFunction[In, Yield, Await]:
+      async [no LineTerminator here] AsyncArrowBindingIdentifier[?Yield] [no LineTerminator here] => AsyncConciseBody[?In]
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await] [no LineTerminator here] => AsyncConciseBody[?In]
+
+    AsyncConciseBody[In]:
+      { AsyncFunctionBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+async() => {
+  void \u0061wait;
+};

test/language/expressions/async-arrow-function/await-as-identifier-reference.js

@@ -0,0 +1,33 @@
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-identifier-reference.case
+// - src/async-functions/syntax/async-arrow.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Async arrow function)
+esid: prod-AsyncArrowFunction
+features: [async-functions]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Arrow Function Definitions
+
+    AsyncArrowFunction[In, Yield, Await]:
+      async [no LineTerminator here] AsyncArrowBindingIdentifier[?Yield] [no LineTerminator here] => AsyncConciseBody[?In]
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await] [no LineTerminator here] => AsyncConciseBody[?In]
+
+    AsyncConciseBody[In]:
+      { AsyncFunctionBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+async() => {
+  void await;
+};

test/language/expressions/async-arrow-function/await-as-label-identifier-escaped.js

@@ -0,0 +1,33 @@
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-label-identifier-escaped.case
+// - src/async-functions/syntax/async-arrow.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a label identifier. (Async arrow function)
+esid: prod-AsyncArrowFunction
+features: [async-functions]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Arrow Function Definitions
+
+    AsyncArrowFunction[In, Yield, Await]:
+      async [no LineTerminator here] AsyncArrowBindingIdentifier[?Yield] [no LineTerminator here] => AsyncConciseBody[?In]
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await] [no LineTerminator here] => AsyncConciseBody[?In]
+
+    AsyncConciseBody[In]:
+      { AsyncFunctionBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+async() => {
+  \u0061wait: ;
+};

test/language/expressions/async-arrow-function/await-as-label-identifier.js

@@ -0,0 +1,33 @@
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-label-identifier.case
+// - src/async-functions/syntax/async-arrow.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a label identifier. (Async arrow function)
+esid: prod-AsyncArrowFunction
+features: [async-functions]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Arrow Function Definitions
+
+    AsyncArrowFunction[In, Yield, Await]:
+      async [no LineTerminator here] AsyncArrowBindingIdentifier[?Yield] [no LineTerminator here] => AsyncConciseBody[?In]
+      CoverCallExpressionAndAsyncArrowHead[?Yield, ?Await] [no LineTerminator here] => AsyncConciseBody[?In]
+
+    AsyncConciseBody[In]:
+      { AsyncFunctionBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+async() => {
+  await: ;
+};

test/language/expressions/async-arrow-function/escaped-async.js

@@ -0,0 +1,22 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-grammar-notation
+description: >
+  The `async` contextual keyword must not contain Unicode escape sequences.
+info: >
+  Terminal symbols of the lexical, RegExp, and numeric string grammars are shown
+  in fixed width font, both in the productions of the grammars and throughout this
+  specification whenever the text directly refers to such a terminal symbol. These
+  are to appear in a script exactly as written. All terminal symbol code points
+  specified in this way are to be understood as the appropriate Unicode code points
+  from the Basic Latin range, as opposed to any similar-looking code points from
+  other Unicode ranges.
+negative:
+  phase: early
+  type: SyntaxError
+features: [async-functions]
+---*/
+
+\u0061sync () => {}

test/language/expressions/async-function/await-as-binding-identifier-escaped.js

@@ -0,0 +1,29 @@
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-binding-identifier-escaped.case
+// - src/async-functions/syntax/async-expression.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Unnamed async function expression)
+esid: prod-AsyncFunctionExpression
+features: [async-functions]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Function Definitions
+
+    AsyncFunctionExpression :
+      async [no LineTerminator here] function ( FormalParameters ) { AsyncFunctionBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+var fn = async function () {
+  var \u0061wait;
+};

test/language/expressions/async-function/await-as-binding-identifier.js

@@ -0,0 +1,29 @@
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-binding-identifier.case
+// - src/async-functions/syntax/async-expression.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Unnamed async function expression)
+esid: prod-AsyncFunctionExpression
+features: [async-functions]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Function Definitions
+
+    AsyncFunctionExpression :
+      async [no LineTerminator here] function ( FormalParameters ) { AsyncFunctionBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+var fn = async function () {
+  var await;
+};

test/language/expressions/async-function/await-as-identifier-reference-escaped.js

@@ -0,0 +1,29 @@
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-identifier-reference-escaped.case
+// - src/async-functions/syntax/async-expression.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Unnamed async function expression)
+esid: prod-AsyncFunctionExpression
+features: [async-functions]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Function Definitions
+
+    AsyncFunctionExpression :
+      async [no LineTerminator here] function ( FormalParameters ) { AsyncFunctionBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+var fn = async function () {
+  void \u0061wait;
+};

test/language/expressions/async-function/await-as-identifier-reference.js

@@ -0,0 +1,29 @@
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-identifier-reference.case
+// - src/async-functions/syntax/async-expression.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Unnamed async function expression)
+esid: prod-AsyncFunctionExpression
+features: [async-functions]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Function Definitions
+
+    AsyncFunctionExpression :
+      async [no LineTerminator here] function ( FormalParameters ) { AsyncFunctionBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+var fn = async function () {
+  void await;
+};

test/language/expressions/async-function/await-as-label-identifier-escaped.js

@@ -0,0 +1,29 @@
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-label-identifier-escaped.case
+// - src/async-functions/syntax/async-expression.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a label identifier. (Unnamed async function expression)
+esid: prod-AsyncFunctionExpression
+features: [async-functions]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Function Definitions
+
+    AsyncFunctionExpression :
+      async [no LineTerminator here] function ( FormalParameters ) { AsyncFunctionBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+var fn = async function () {
+  \u0061wait: ;
+};

test/language/expressions/async-function/await-as-label-identifier.js

@@ -0,0 +1,29 @@
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-label-identifier.case
+// - src/async-functions/syntax/async-expression.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a label identifier. (Unnamed async function expression)
+esid: prod-AsyncFunctionExpression
+features: [async-functions]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Function Definitions
+
+    AsyncFunctionExpression :
+      async [no LineTerminator here] function ( FormalParameters ) { AsyncFunctionBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+var fn = async function () {
+  await: ;
+};

test/language/expressions/async-function/escaped-async.js

@@ -0,0 +1,22 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-grammar-notation
+description: >
+  The `async` contextual keyword must not contain Unicode escape sequences.
+info: >
+  Terminal symbols of the lexical, RegExp, and numeric string grammars are shown
+  in fixed width font, both in the productions of the grammars and throughout this
+  specification whenever the text directly refers to such a terminal symbol. These
+  are to appear in a script exactly as written. All terminal symbol code points
+  specified in this way are to be understood as the appropriate Unicode code points
+  from the Basic Latin range, as opposed to any similar-looking code points from
+  other Unicode ranges.
+negative:
+  phase: early
+  type: SyntaxError
+features: [async-functions]
+---*/
+
+void \u0061sync function f(){}

test/language/expressions/async-function/named-await-as-binding-identifier-escaped.js

@@ -0,0 +1,29 @@
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-binding-identifier-escaped.case
+// - src/async-functions/syntax/async-expression-named.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Named async function expression)
+esid: prod-AsyncFunctionExpression
+features: [async-functions]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Function Definitions
+
+    AsyncFunctionExpression :
+      async [no LineTerminator here] function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+var fn = async function fn() {
+  var \u0061wait;
+};

test/language/expressions/async-function/named-await-as-binding-identifier.js

@@ -0,0 +1,29 @@
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-binding-identifier.case
+// - src/async-functions/syntax/async-expression-named.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Named async function expression)
+esid: prod-AsyncFunctionExpression
+features: [async-functions]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Function Definitions
+
+    AsyncFunctionExpression :
+      async [no LineTerminator here] function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+var fn = async function fn() {
+  var await;
+};

test/language/expressions/async-function/named-await-as-identifier-reference-escaped.js

@@ -0,0 +1,29 @@
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-identifier-reference-escaped.case
+// - src/async-functions/syntax/async-expression-named.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Named async function expression)
+esid: prod-AsyncFunctionExpression
+features: [async-functions]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Function Definitions
+
+    AsyncFunctionExpression :
+      async [no LineTerminator here] function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+var fn = async function fn() {
+  void \u0061wait;
+};

test/language/expressions/async-function/named-await-as-identifier-reference.js

@@ -0,0 +1,29 @@
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-identifier-reference.case
+// - src/async-functions/syntax/async-expression-named.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Named async function expression)
+esid: prod-AsyncFunctionExpression
+features: [async-functions]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Function Definitions
+
+    AsyncFunctionExpression :
+      async [no LineTerminator here] function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+var fn = async function fn() {
+  void await;
+};

test/language/expressions/async-function/named-await-as-label-identifier-escaped.js

@@ -0,0 +1,29 @@
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-label-identifier-escaped.case
+// - src/async-functions/syntax/async-expression-named.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a label identifier. (Named async function expression)
+esid: prod-AsyncFunctionExpression
+features: [async-functions]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Function Definitions
+
+    AsyncFunctionExpression :
+      async [no LineTerminator here] function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+var fn = async function fn() {
+  \u0061wait: ;
+};

test/language/expressions/async-function/named-await-as-label-identifier.js

@@ -0,0 +1,29 @@
+// This file was procedurally generated from the following sources:
+// - src/async-functions/await-as-label-identifier.case
+// - src/async-functions/syntax/async-expression-named.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a label identifier. (Named async function expression)
+esid: prod-AsyncFunctionExpression
+features: [async-functions]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Function Definitions
+
+    AsyncFunctionExpression :
+      async [no LineTerminator here] function BindingIdentifier ( FormalParameters ) { AsyncFunctionBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+var fn = async function fn() {
+  await: ;
+};

test/language/expressions/async-generator/await-as-binding-identifier-escaped.js

@@ -0,0 +1,30 @@
+// This file was procedurally generated from the following sources:
+// - src/async-generators/await-as-binding-identifier-escaped.case
+// - src/async-generators/syntax/async-expression.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Unnamed async generator expression)
+esid: prod-AsyncGeneratorExpression
+features: [async-iteration]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Generator Function Definitions
+
+    AsyncGeneratorExpression :
+      async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
+        AsyncGeneratorBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+var gen = async function *() {
+  var \u0061wait;
+};

test/language/expressions/async-generator/await-as-binding-identifier.js

@@ -0,0 +1,30 @@
+// This file was procedurally generated from the following sources:
+// - src/async-generators/await-as-binding-identifier.case
+// - src/async-generators/syntax/async-expression.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Unnamed async generator expression)
+esid: prod-AsyncGeneratorExpression
+features: [async-iteration]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Generator Function Definitions
+
+    AsyncGeneratorExpression :
+      async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
+        AsyncGeneratorBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+var gen = async function *() {
+  var await;
+};

test/language/expressions/async-generator/await-as-identifier-reference-escaped.js

@@ -0,0 +1,30 @@
+// This file was procedurally generated from the following sources:
+// - src/async-generators/await-as-identifier-reference-escaped.case
+// - src/async-generators/syntax/async-expression.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Unnamed async generator expression)
+esid: prod-AsyncGeneratorExpression
+features: [async-iteration]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Generator Function Definitions
+
+    AsyncGeneratorExpression :
+      async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
+        AsyncGeneratorBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+var gen = async function *() {
+  void \u0061wait;
+};

test/language/expressions/async-generator/await-as-identifier-reference.js

@@ -0,0 +1,30 @@
+// This file was procedurally generated from the following sources:
+// - src/async-generators/await-as-identifier-reference.case
+// - src/async-generators/syntax/async-expression.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Unnamed async generator expression)
+esid: prod-AsyncGeneratorExpression
+features: [async-iteration]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Generator Function Definitions
+
+    AsyncGeneratorExpression :
+      async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
+        AsyncGeneratorBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+var gen = async function *() {
+  void await;
+};

test/language/expressions/async-generator/await-as-label-identifier-escaped.js

@@ -0,0 +1,30 @@
+// This file was procedurally generated from the following sources:
+// - src/async-generators/await-as-label-identifier-escaped.case
+// - src/async-generators/syntax/async-expression.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a label identifier. (Unnamed async generator expression)
+esid: prod-AsyncGeneratorExpression
+features: [async-iteration]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Generator Function Definitions
+
+    AsyncGeneratorExpression :
+      async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
+        AsyncGeneratorBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+var gen = async function *() {
+  \u0061wait: ;
+};

test/language/expressions/async-generator/await-as-label-identifier.js

@@ -0,0 +1,30 @@
+// This file was procedurally generated from the following sources:
+// - src/async-generators/await-as-label-identifier.case
+// - src/async-generators/syntax/async-expression.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a label identifier. (Unnamed async generator expression)
+esid: prod-AsyncGeneratorExpression
+features: [async-iteration]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Generator Function Definitions
+
+    AsyncGeneratorExpression :
+      async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
+        AsyncGeneratorBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+var gen = async function *() {
+  await: ;
+};

test/language/expressions/async-generator/escaped-async.js

@@ -0,0 +1,22 @@
+// Copyright (C) 2017 André Bargull. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+esid: sec-grammar-notation
+description: >
+  The `async` contextual keyword must not contain Unicode escape sequences.
+info: >
+  Terminal symbols of the lexical, RegExp, and numeric string grammars are shown
+  in fixed width font, both in the productions of the grammars and throughout this
+  specification whenever the text directly refers to such a terminal symbol. These
+  are to appear in a script exactly as written. All terminal symbol code points
+  specified in this way are to be understood as the appropriate Unicode code points
+  from the Basic Latin range, as opposed to any similar-looking code points from
+  other Unicode ranges.
+negative:
+  phase: early
+  type: SyntaxError
+features: [async-iteration]
+---*/
+
+void \u0061sync function* f(){};

test/language/expressions/async-generator/named-await-as-binding-identifier-escaped.js

@@ -0,0 +1,30 @@
+// This file was procedurally generated from the following sources:
+// - src/async-generators/await-as-binding-identifier-escaped.case
+// - src/async-generators/syntax/async-expression-named.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Named async generator expression)
+esid: prod-AsyncGeneratorExpression
+features: [async-iteration]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Generator Function Definitions
+
+    AsyncGeneratorExpression :
+      async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
+        AsyncGeneratorBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+var gen = async function *g() {
+  var \u0061wait;
+};

test/language/expressions/async-generator/named-await-as-binding-identifier.js

@@ -0,0 +1,30 @@
+// This file was procedurally generated from the following sources:
+// - src/async-generators/await-as-binding-identifier.case
+// - src/async-generators/syntax/async-expression-named.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Named async generator expression)
+esid: prod-AsyncGeneratorExpression
+features: [async-iteration]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Generator Function Definitions
+
+    AsyncGeneratorExpression :
+      async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
+        AsyncGeneratorBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+var gen = async function *g() {
+  var await;
+};

test/language/expressions/async-generator/named-await-as-identifier-reference-escaped.js

@@ -0,0 +1,30 @@
+// This file was procedurally generated from the following sources:
+// - src/async-generators/await-as-identifier-reference-escaped.case
+// - src/async-generators/syntax/async-expression-named.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Named async generator expression)
+esid: prod-AsyncGeneratorExpression
+features: [async-iteration]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Generator Function Definitions
+
+    AsyncGeneratorExpression :
+      async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
+        AsyncGeneratorBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+var gen = async function *g() {
+  void \u0061wait;
+};

test/language/expressions/async-generator/named-await-as-identifier-reference.js

@@ -0,0 +1,30 @@
+// This file was procedurally generated from the following sources:
+// - src/async-generators/await-as-identifier-reference.case
+// - src/async-generators/syntax/async-expression-named.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Named async generator expression)
+esid: prod-AsyncGeneratorExpression
+features: [async-iteration]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Generator Function Definitions
+
+    AsyncGeneratorExpression :
+      async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
+        AsyncGeneratorBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+var gen = async function *g() {
+  void await;
+};

test/language/expressions/async-generator/named-await-as-label-identifier-escaped.js

@@ -0,0 +1,30 @@
+// This file was procedurally generated from the following sources:
+// - src/async-generators/await-as-label-identifier-escaped.case
+// - src/async-generators/syntax/async-expression-named.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a label identifier. (Named async generator expression)
+esid: prod-AsyncGeneratorExpression
+features: [async-iteration]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Generator Function Definitions
+
+    AsyncGeneratorExpression :
+      async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
+        AsyncGeneratorBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+var gen = async function *g() {
+  \u0061wait: ;
+};

test/language/expressions/async-generator/named-await-as-label-identifier.js

@@ -0,0 +1,30 @@
+// This file was procedurally generated from the following sources:
+// - src/async-generators/await-as-label-identifier.case
+// - src/async-generators/syntax/async-expression-named.template
+/*---
+description: await is a reserved keyword within generator function bodies and may not be used as a label identifier. (Named async generator expression)
+esid: prod-AsyncGeneratorExpression
+features: [async-iteration]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Generator Function Definitions
+
+    AsyncGeneratorExpression :
+      async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
+        AsyncGeneratorBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Await] parameter and
+    StringValue of Identifier is "await".
+
+---*/
+
+
+var gen = async function *g() {
+  await: ;
+};

test/language/expressions/async-generator/named-yield-as-binding-identifier-escaped.js

@@ -0,0 +1,30 @@
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-as-binding-identifier-escaped.case
+// - src/async-generators/syntax/async-expression-named.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Named async generator expression)
+esid: prod-AsyncGeneratorExpression
+features: [async-iteration]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Generator Function Definitions
+
+    AsyncGeneratorExpression :
+      async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
+        AsyncGeneratorBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+
+
+var gen = async function *g() {
+  var yi\u0065ld;
+};

test/language/expressions/async-generator/named-yield-as-binding-identifier.js

@@ -0,0 +1,30 @@
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-as-binding-identifier.case
+// - src/async-generators/syntax/async-expression-named.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as a binding identifier. (Named async generator expression)
+esid: prod-AsyncGeneratorExpression
+features: [async-iteration]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Generator Function Definitions
+
+    AsyncGeneratorExpression :
+      async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
+        AsyncGeneratorBody }
+
+
+    BindingIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+
+
+var gen = async function *g() {
+  var yield;
+};

test/language/expressions/async-generator/named-yield-as-identifier-reference-escaped.js

@@ -0,0 +1,30 @@
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-as-identifier-reference-escaped.case
+// - src/async-generators/syntax/async-expression-named.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Named async generator expression)
+esid: prod-AsyncGeneratorExpression
+features: [async-iteration]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Generator Function Definitions
+
+    AsyncGeneratorExpression :
+      async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
+        AsyncGeneratorBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+
+
+var gen = async function *g() {
+  void yi\u0065ld;
+};

test/language/expressions/async-generator/named-yield-as-identifier-reference.js

@@ -0,0 +1,30 @@
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-as-identifier-reference.case
+// - src/async-generators/syntax/async-expression-named.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as an identifier reference. (Named async generator expression)
+esid: prod-AsyncGeneratorExpression
+features: [async-iteration]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Generator Function Definitions
+
+    AsyncGeneratorExpression :
+      async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
+        AsyncGeneratorBody }
+
+
+    IdentifierReference : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+
+
+var gen = async function *g() {
+  void yield;
+};

test/language/expressions/async-generator/named-yield-as-label-identifier-escaped.js

@@ -0,0 +1,30 @@
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-as-label-identifier-escaped.case
+// - src/async-generators/syntax/async-expression-named.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as a label identifier. (Named async generator expression)
+esid: prod-AsyncGeneratorExpression
+features: [async-iteration]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Generator Function Definitions
+
+    AsyncGeneratorExpression :
+      async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
+        AsyncGeneratorBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+
+
+var gen = async function *g() {
+  yi\u0065ld: ;
+};

test/language/expressions/async-generator/named-yield-as-label-identifier.js

@@ -0,0 +1,30 @@
+// This file was procedurally generated from the following sources:
+// - src/async-generators/yield-as-label-identifier.case
+// - src/async-generators/syntax/async-expression-named.template
+/*---
+description: yield is a reserved keyword within generator function bodies and may not be used as a label identifier. (Named async generator expression)
+esid: prod-AsyncGeneratorExpression
+features: [async-iteration]
+flags: [generated]
+negative:
+  phase: early
+  type: SyntaxError
+info: |
+    Async Generator Function Definitions
+
+    AsyncGeneratorExpression :
+      async [no LineTerminator here] function * BindingIdentifier ( FormalParameters ) {
+        AsyncGeneratorBody }
+
+
+    LabelIdentifier : Identifier
+
+    It is a Syntax Error if this production has a [Yield] parameter and
+    StringValue of Identifier is "yield".
+
+---*/
+
+
+var gen = async function *g() {
+  yield: ;
+};