[generators] Desugar yield*.

src/parsing/parser.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef V8_PARSING_PARSER_H_
 #define V8_PARSING_PARSER_H_
 
 #include "src/allocation.h"
 #include "src/ast/ast.h"
 #include "src/ast/scopes.h"
@@ skipping 640 matching lines @@
   void SetFunctionNameFromIdentifierRef(Expression* value,
                                         Expression* identifier);
 
   // Rewrite expressions that are not used as patterns
   V8_INLINE Expression* RewriteNonPattern(
       Expression* expr, const ExpressionClassifier* classifier, bool* ok);
   V8_INLINE ObjectLiteralProperty* RewriteNonPatternObjectLiteralProperty(
       ObjectLiteralProperty* property, const ExpressionClassifier* classifier,
       bool* ok);
 
+  Expression* RewriteYieldStar(
+      Expression* generator, Expression* expression, int pos);
+
  private:
   Parser* parser_;
+
+  void BuildIteratorClose(ZoneList<Statement*>* statements, Variable* iterator);
 };
 
 
 class Parser : public ParserBase<ParserTraits> {
  public:
   explicit Parser(ParseInfo* info);
   ~Parser() {
     delete reusable_preparser_;
     reusable_preparser_ = NULL;
     delete cached_parse_data_;
@@ skipping 76 matching lines @@
   Statement* ParseClassDeclaration(ZoneList<const AstRawString*>* names,
                                    bool* ok);
   Statement* ParseNativeDeclaration(bool* ok);
   Block* ParseBlock(ZoneList<const AstRawString*>* labels, bool* ok);
   Block* ParseBlock(ZoneList<const AstRawString*>* labels,
                     bool finalize_block_scope, bool* ok);
   Block* ParseVariableStatement(VariableDeclarationContext var_context,
                                 ZoneList<const AstRawString*>* names,
                                 bool* ok);
   DoExpression* ParseDoExpression(bool* ok);
+  Expression* ParseYieldStarExpression(bool* ok);
 
   struct DeclarationDescriptor {
     enum Kind { NORMAL, PARAMETER };
     Parser* parser;
     Scope* scope;
     Scope* hoist_scope;
     VariableMode mode;
     bool needs_init;
     int declaration_pos;
     int initialization_pos;
@@ skipping 444 matching lines @@
 
 DoExpression* ParserTraits::ParseDoExpression(bool* ok) {
   return parser_->ParseDoExpression(ok);
 }
 
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_PARSING_PARSER_H_