Internalize string keys in Keyed{Store,Load}IC.

src/factory.cc

 // Copyright 2013 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 1282 matching lines @@
 }
 
 
 Handle<Code> Factory::CopyCode(Handle<Code> code, Vector<byte> reloc_info) {
   CALL_HEAP_FUNCTION(isolate(),
                      isolate()->heap()->CopyCode(*code, reloc_info),
                      Code);
 }
 
 
-Handle<String> Factory::InternalizedStringFromString(Handle<String> value) {
-  CALL_HEAP_FUNCTION(isolate(),
-                     isolate()->heap()->InternalizeString(*value), String);
-}
-
-
 Handle<JSObject> Factory::NewJSObject(Handle<JSFunction> constructor,
                                       PretenureFlag pretenure) {
   JSFunction::EnsureHasInitialMap(constructor);
   CALL_HEAP_FUNCTION(
       isolate(),
       isolate()->heap()->AllocateJSObject(*constructor, pretenure), JSObject);
 }
 
 
 Handle<JSModule> Factory::NewJSModule(Handle<Context> context,
@@ skipping 675 matching lines @@
   return Handle<Object>::null();
 }
 
 
 Handle<Object> Factory::ToBoolean(bool value) {
   return value ? true_value() : false_value();
 }
 
 
 } }  // namespace v8::internal