Revert of [heap] Avoid the use of cells to point from code to new-space objects.

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 2446 matching lines @@
 
 Object* ArrayList::Get(int index) {
   return FixedArray::cast(this)->get(kFirstIndex + index);
 }
 
 
 Object** ArrayList::Slot(int index) {
   return data_start() + kFirstIndex + index;
 }
 
-void ArrayList::Set(int index, Object* obj, WriteBarrierMode mode) {
-  FixedArray::cast(this)->set(kFirstIndex + index, obj, mode);
+
+void ArrayList::Set(int index, Object* obj) {
+  FixedArray::cast(this)->set(kFirstIndex + index, obj);
 }
 
 
 void ArrayList::Clear(int index, Object* undefined) {
   DCHECK(undefined->IsUndefined(GetIsolate()));
   FixedArray::cast(this)
       ->set(kFirstIndex + index, undefined, SKIP_WRITE_BARRIER);
 }
 
 
@@ skipping 5429 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_