add generators async-generators syntax

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

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+// Copyright (C) 2018 Bloomberg LP. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/statements/class/async-gen-private-method-
+name: Async Generator private method as a ClassDeclaration element
+esid: prod-AsyncGeneratorMethod
+info: |
+  ClassElement :
+    PrivateMethodDefinition
+
+  MethodDefinition :
+    AsyncGeneratorMethod
+
+  Async Generator Function Definitions
+
+  AsyncGeneratorMethod :
+    async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+features: [async-iteration, class-methods-private]
+---*/
+
+class C { async *#gen() {
+    /*{ body }*/
+}}

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

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+// Copyright (C) 2018 Bloomberg LP. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/statements/class/async-gen-private-method-static-
+name: Static async generator private method as a ClassDeclaration element
+esid: prod-AsyncGeneratorMethod
+info: |
+  ClassElement :
+    static PrivateMethodDefinition
+
+  MethodDefinition :
+    AsyncGeneratorMethod
+
+  Async Generator Function Definitions
+
+  AsyncGeneratorMethod :
+    async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+features: [async-iteration, class-methods-private]
+---*/
+
+class C { static async *#gen() {
+    /*{ body }*/
+}}

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

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+// Copyright (C) 2018 Bloomberg LP. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/expressions/class/async-gen-private-method-
+name: Async generator private method as a ClassExpression element
+esid: prod-AsyncGeneratorMethod
+info: |
+  ClassElement :
+    PrivateMethodDefinition
+
+  MethodDefinition :
+    AsyncGeneratorMethod
+
+  Async Generator Function Definitions
+
+  AsyncGeneratorMethod :
+    async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+features: [async-iteration, class-methods-private]
+---*/
+
+var C = class { async *#gen() {
+    /*{ body }*/
+}};

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

@@ -0,0 +1,24 @@
+// Copyright (C) 2018 Bloomberg LP. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+
+/*---
+path: language/expressions/class/async-gen-private-method-static-
+name: Static async generator private method as a ClassExpression element
+esid: prod-AsyncGeneratorMethod
+info: |
+  ClassElement :
+    static PrivateMethodDefinition
+
+  MethodDefinition :
+    AsyncGeneratorMethod
+
+  Async Generator Function Definitions
+
+  AsyncGeneratorMethod :
+    async [no LineTerminator here] * # PropertyName ( UniqueFormalParameters ) { AsyncGeneratorBody }
+features: [async-iteration, class-methods-private]
+---*/
+
+var C = class { static async *#gen() {
+    /*{ body }*/
+}};

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

@@ -0,0 +1,23 @@
+// Copyright (C) 2018 Bloomberg LP. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/class/gen-private-method-
+name: Generator method as a ClassDeclaration element
+esid: prod-GeneratorMethod
+info: |
+  ClassElement :
+    PrivateMethodDefinition
+
+  MethodDefinition :
+    GeneratorMethod
+
+  14.4 Generator Function Definitions
+
+  GeneratorMethod :
+    * # PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+features: [generators, class-methods-private]
+---*/
+
+class C { *#gen() {
+    /*{ body }*/
+}}

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

@@ -0,0 +1,23 @@
+// Copyright (C) 2018 Bloomberg LP. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/statements/class/gen-private-method-static-
+name: Static generator method as a ClassDeclaration element
+esid: prod-GeneratorMethod
+info: |
+  ClassElement :
+    static PrivateMethodDefinition
+
+  MethodDefinition :
+    GeneratorMethod
+
+  14.4 Generator Function Definitions
+
+  GeneratorMethod :
+    * # PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+features: [generators, class-methods-private]
+---*/
+
+class C {static *#gen() {
+    /*{ body }*/
+}}

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

@@ -0,0 +1,23 @@
+// Copyright (C) 2018 Bloomberg LP. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/class/gen-private-method-
+name: Generator private method as a ClassExpression element
+esid: prod-GeneratorMethod
+info: |
+  ClassElement :
+    PrivateMethodDefinition
+
+  MethodDefinition :
+    GeneratorMethod
+
+  14.4 Generator Function Definitions
+
+  GeneratorMethod :
+    * # PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+features: [generators, class-methods-private]
+---*/
+
+var C = class {*#gen() {
+    /*{ body }*/
+}};

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

@@ -0,0 +1,23 @@
+// Copyright (C) 2018 Bloomberg LP. All rights reserved.
+// This code is governed by the BSD license found in the LICENSE file.
+/*---
+path: language/expressions/class/gen-private-method-static-
+name: Static generator private method as a ClassExpression element
+esid: prod-GeneratorMethod
+info: |
+  ClassElement :
+    static PrivateMethodDefinition
+
+  MethodDefinition :
+    GeneratorMethod
+
+  14.4 Generator Function Definitions
+
+  GeneratorMethod :
+    * # PropertyName ( UniqueFormalParameters ) { GeneratorBody }
+features: [generators, class-methods-private]
+---*/
+
+var C = class { static *#gen() {
+    /*{ body }*/
+}};