Renamed "symbols" to "internalized strings" throughout the code base,

src/code-stubs-hydrogen.cc

 // Copyright 2012 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 209 matching lines @@
   AddInstruction(new(zone) HStoreKeyed(new_elements, key, hole, to_kind));
   AddSimulate(BailoutId::StubEntry(), REMOVABLE_SIMULATE);
 
   builder.EndBody();
 
   BuildCopyElements(context(), elements,
                     casted_stub()->from_kind(), new_elements,
                     to_kind, array_length);
 
   AddInstruction(new(zone) HStoreNamedField(js_array,
-                                            factory->elements_field_symbol(),
+                                            factory->elements_field_string(),
                                             new_elements, true,
                                             JSArray::kElementsOffset));
   AddSimulate(BailoutId::StubEntry());
 
   if_builder.End();
 
-  AddInstruction(new(zone) HStoreNamedField(js_array, factory->length_symbol(),
+  AddInstruction(new(zone) HStoreNamedField(js_array, factory->length_string(),
                                             map, true, JSArray::kMapOffset));
   AddSimulate(BailoutId::StubEntry());
 
   HReturn* ret = new(zone) HReturn(js_array, context());
   current_block()->Finish(ret);
 }
 
 
 Handle<Code> TransitionElementsKindStub::GenerateCode() {
   CodeStubGraphBuilder<TransitionElementsKindStub> builder(this);
   LChunk* chunk = OptimizeGraph(builder.CreateGraph());
   return chunk->Codegen(Code::COMPILED_STUB);
 }
 
 
 } }  // namespace v8::internal