Change JSObject elements to be of type FixedArrayBase

src/objects-inl.h

 // 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 1325 matching lines @@
 
 
 int HeapNumber::get_sign() {
   return READ_INT_FIELD(this, kExponentOffset) & kSignMask;
 }
 
 
 ACCESSORS(JSObject, properties, FixedArray, kPropertiesOffset)
 
 
-HeapObject* JSObject::elements() {
+FixedArrayBase* JSObject::elements() {
   Object* array = READ_FIELD(this, kElementsOffset);
   ASSERT(array->HasValidElements());
-  return reinterpret_cast<HeapObject*>(array);
+  return static_cast<FixedArrayBase*>(array);
 }
 
 
-void JSObject::set_elements(HeapObject* value, WriteBarrierMode mode) {
+void JSObject::set_elements(FixedArrayBase* value, WriteBarrierMode mode) {
   ASSERT(map()->has_fast_elements() ==
          (value->map() == GetHeap()->fixed_array_map() ||
           value->map() == GetHeap()->fixed_cow_array_map()));
   ASSERT(map()->has_fast_double_elements() ==
          value->IsFixedDoubleArray());
   ASSERT(value->HasValidElements());
   WRITE_FIELD(this, kElementsOffset, value);
   CONDITIONAL_WRITE_BARRIER(GetHeap(), this, kElementsOffset, mode);
 }
 
@@ skipping 3244 matching lines @@
 #undef WRITE_INT_FIELD
 #undef READ_SHORT_FIELD
 #undef WRITE_SHORT_FIELD
 #undef READ_BYTE_FIELD
 #undef WRITE_BYTE_FIELD
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_INL_H_