Revert "Implement handling of arrow functions in the parser"

src/parser.h

Index: src/parser.h
diff --git a/src/parser.h b/src/parser.h
index 3b3450c2398d1bbbf89a92cd746e9f1dd12f2010..d0b67b7a79332c31ea267042ed2c6779c567b52c 100644
--- a/src/parser.h
+++ b/src/parser.h
@@ -351,13 +351,9 @@ class ParserTraits {
 
     // Used by FunctionState and BlockState.
     typedef v8::internal::Scope Scope;
-    typedef v8::internal::Scope* ScopePtr;
     typedef Variable GeneratorVariable;
     typedef v8::internal::Zone Zone;
 
-    typedef v8::internal::AstProperties AstProperties;
-    typedef Vector<VariableProxy*> ParameterIdentifierVector;
-
     // Return types for traversing functions.
     typedef const AstRawString* Identifier;
     typedef v8::internal::Expression* Expression;
@@ -392,7 +388,6 @@ class ParserTraits {
 
   // Helper functions for recursive descent.
   bool IsEvalOrArguments(const AstRawString* identifier) const;
-  V8_INLINE bool IsFutureStrictReserved(const AstRawString* identifier) const;
 
   // Returns true if the expression is of type "this.foo".
   static bool IsThisProperty(Expression* expression);
@@ -506,19 +501,14 @@ class ParserTraits {
   static Expression* EmptyExpression() {
     return NULL;
   }
-  static Expression* EmptyArrowParamList() { return NULL; }
   static Literal* EmptyLiteral() {
     return NULL;
   }
-
   // Used in error return values.
   static ZoneList<Expression*>* NullExpressionList() {
     return NULL;
   }
 
-  // Non-NULL empty string.
-  V8_INLINE const AstRawString* EmptyIdentifierString();
-
   // Odd-ball literal creators.
   Literal* GetLiteralTheHole(int position,
                              AstNodeFactory<AstConstructionVisitor>* factory);
@@ -547,12 +537,6 @@ class ParserTraits {
   ZoneList<v8::internal::Statement*>* NewStatementList(int size, Zone* zone) {
     return new(zone) ZoneList<v8::internal::Statement*>(size, zone);
   }
-  V8_INLINE Scope* NewScope(Scope* parent_scope, ScopeType scope_type);
-
-  // Utility functions
-  Vector<VariableProxy*> ParameterListFromExpression(Expression* expression,
-                                                     bool* ok);
-  V8_INLINE AstValueFactory* ast_value_factory();
 
   // Temporary glue; these functions will move to ParserBase.
   Expression* ParseV8Intrinsic(bool* ok);
@@ -565,14 +549,6 @@ class ParserTraits {
       FunctionLiteral::FunctionType type,
       FunctionLiteral::ArityRestriction arity_restriction,
       bool* ok);
-  V8_INLINE void SkipLazyFunctionBody(const AstRawString* name,
-                                      int* materialized_literal_count,
-                                      int* expected_property_count, bool* ok);
-  V8_INLINE ZoneList<Statement*>* ParseEagerFunctionBody(
-      const AstRawString* name, int pos, Variable* fvar,
-      Token::Value fvar_init_op, bool is_generator, bool* ok);
-  V8_INLINE void CheckConflictingVarDeclarations(v8::internal::Scope* scope,
-                                                 bool* ok);
 
  private:
   Parser* parser_;
@@ -806,50 +782,6 @@ class Parser : public ParserBase<ParserTraits> {
 };
 
 
-bool ParserTraits::IsFutureStrictReserved(
-    const AstRawString* identifier) const {
-  return identifier->IsOneByteEqualTo("yield") ||
-         parser_->scanner()->IdentifierIsFutureStrictReserved(identifier);
-}
-
-
-Scope* ParserTraits::NewScope(Scope* parent_scope, ScopeType scope_type) {
-  return parser_->NewScope(parent_scope, scope_type);
-}
-
-
-const AstRawString* ParserTraits::EmptyIdentifierString() {
-  return parser_->ast_value_factory_->empty_string();
-}
-
-
-void ParserTraits::SkipLazyFunctionBody(const AstRawString* function_name,
-                                        int* materialized_literal_count,
-                                        int* expected_property_count,
-                                        bool* ok) {
-  return parser_->SkipLazyFunctionBody(
-      function_name, materialized_literal_count, expected_property_count, ok);
-}
-
-
-ZoneList<Statement*>* ParserTraits::ParseEagerFunctionBody(
-    const AstRawString* name, int pos, Variable* fvar,
-    Token::Value fvar_init_op, bool is_generator, bool* ok) {
-  return parser_->ParseEagerFunctionBody(name, pos, fvar, fvar_init_op,
-                                         is_generator, ok);
-}
-
-void ParserTraits::CheckConflictingVarDeclarations(v8::internal::Scope* scope,
-                                                   bool* ok) {
-  parser_->CheckConflictingVarDeclarations(scope, ok);
-}
-
-
-AstValueFactory* ParserTraits::ast_value_factory() {
-  return parser_->ast_value_factory_;
-}
-
-
 // Support for handling complex values (array and object literals) that
 // can be fully handled at compile time.
 class CompileTimeValue: public AllStatic {