[runtime] Clean up symbol access in identity hash code

src/objects-inl.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.
 //
 // Review notes:
 //
 // - The use of macros in these inline functions may seem superfluous
 // but it is absolutely needed to make sure gcc generates optimal
 // code. gcc is not happy when attempting to inline too deep.
 //
@@ skipping 7092 matching lines @@
   return iter.GetCurrent() != global;
 }
 
 
 Handle<Smi> JSReceiver::GetOrCreateIdentityHash(Handle<JSReceiver> object) {
   return object->IsJSProxy()
       ? JSProxy::GetOrCreateIdentityHash(Handle<JSProxy>::cast(object))
       : JSObject::GetOrCreateIdentityHash(Handle<JSObject>::cast(object));
 }
 
-
-Object* JSReceiver::GetIdentityHash() {
-  return IsJSProxy()
-      ? JSProxy::cast(this)->GetIdentityHash()
-      : JSObject::cast(this)->GetIdentityHash();
+Handle<Object> JSReceiver::GetIdentityHash(Isolate* isolate,
+                                           Handle<JSReceiver> receiver) {
+  return receiver->IsJSProxy() ? JSProxy::GetIdentityHash(
+                                     isolate, Handle<JSProxy>::cast(receiver))
+                               : JSObject::GetIdentityHash(
+                                     isolate, Handle<JSObject>::cast(receiver));
 }
 
 
 bool AccessorInfo::all_can_read() {
   return BooleanBit::get(flag(), kAllCanReadBit);
 }
 
 
 void AccessorInfo::set_all_can_read(bool value) {
   set_flag(BooleanBit::set(flag(), kAllCanReadBit, value));
@@ skipping 619 matching lines @@
 #undef WRITE_INT64_FIELD
 #undef READ_BYTE_FIELD
 #undef WRITE_BYTE_FIELD
 #undef NOBARRIER_READ_BYTE_FIELD
 #undef NOBARRIER_WRITE_BYTE_FIELD
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_OBJECTS_INL_H_