Remove some remnants of MaybeObjects in objects.*.

src/objects-inl.h

 // 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 6228 matching lines @@
 bool JSObject::HasNamedInterceptor() {
   return map()->has_named_interceptor();
 }
 
 
 bool JSObject::HasIndexedInterceptor() {
   return map()->has_indexed_interceptor();
 }
 
 
-MaybeObject* JSObject::EnsureWritableFastElements() {
-  ASSERT(HasFastSmiOrObjectElements());
-  FixedArray* elems = FixedArray::cast(elements());
-  Isolate* isolate = GetIsolate();
-  if (elems->map() != isolate->heap()->fixed_cow_array_map()) return elems;
-  Object* writable_elems;
-  { MaybeObject* maybe_writable_elems = isolate->heap()->CopyFixedArrayWithMap(
-      elems, isolate->heap()->fixed_array_map());
-    if (!maybe_writable_elems->ToObject(&writable_elems)) {
-      return maybe_writable_elems;
-    }
-  }
-  set_elements(FixedArray::cast(writable_elems));
-  isolate->counters()->cow_arrays_converted()->Increment();
-  return writable_elems;
-}
-
-
 NameDictionary* JSObject::property_dictionary() {
   ASSERT(!HasFastProperties());
   return NameDictionary::cast(properties());
 }
 
 
 SeededNumberDictionary* JSObject::element_dictionary() {
   ASSERT(HasDictionaryElements());
   return SeededNumberDictionary::cast(elements());
 }
@@ skipping 521 matching lines @@
           IsFastDoubleElementsKind(array->GetElementsKind())) ||
          ((storage->map() != array->GetHeap()->fixed_double_array_map()) &&
           (IsFastObjectElementsKind(array->GetElementsKind()) ||
            (IsFastSmiElementsKind(array->GetElementsKind()) &&
             Handle<FixedArray>::cast(storage)->ContainsOnlySmisOrHoles()))));
   array->set_elements(*storage);
   array->set_length(Smi::FromInt(storage->length()));
 }
 
 
-MaybeObject* FixedArray::Copy() {
-  if (length() == 0) return this;
-  return GetHeap()->CopyFixedArray(this);
-}
-
-
-MaybeObject* FixedDoubleArray::Copy() {
-  if (length() == 0) return this;
-  return GetHeap()->CopyFixedDoubleArray(this);
-}
-
-
-MaybeObject* ConstantPoolArray::Copy() {
-  if (length() == 0) return this;
-  return GetHeap()->CopyConstantPoolArray(this);
-}
-
-
 Handle<Object> TypeFeedbackInfo::UninitializedSentinel(Isolate* isolate) {
   return isolate->factory()->uninitialized_symbol();
 }
 
 
 Handle<Object> TypeFeedbackInfo::MegamorphicSentinel(Isolate* isolate) {
   return isolate->factory()->megamorphic_symbol();
 }
 
 
@@ skipping 200 matching lines @@
 #undef READ_SHORT_FIELD
 #undef WRITE_SHORT_FIELD
 #undef READ_BYTE_FIELD
 #undef WRITE_BYTE_FIELD
 #undef NOBARRIER_READ_BYTE_FIELD
 #undef NOBARRIER_WRITE_BYTE_FIELD
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_INL_H_