Introduce extended mode.

src/ast.cc

 // Copyright 2011 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 149 matching lines @@
 int FunctionLiteral::start_position() const {
   return scope()->start_position();
 }
 
 
 int FunctionLiteral::end_position() const {
   return scope()->end_position();
 }
 
 
-StrictModeFlag FunctionLiteral::strict_mode_flag() const {
-  return scope()->strict_mode_flag();
+LanguageMode FunctionLiteral::language_mode() const {
+  return scope()->language_mode();
 }
 
 
 ObjectLiteral::Property::Property(Literal* key, Expression* value) {
   emit_store_ = true;
   key_ = key;
   value_ = value;
   Object* k = *key->handle();
   if (k->IsSymbol() && HEAP->Proto_symbol()->Equals(String::cast(k))) {
     kind_ = PROTOTYPE;
@@ skipping 1024 matching lines @@
                        int pos)
     : label_(label),
       statements_(statements),
       position_(pos),
       compare_type_(NONE),
       compare_id_(AstNode::GetNextId(isolate)),
       entry_id_(AstNode::GetNextId(isolate)) {
 }
 
 } }  // namespace v8::internal