Remove the holder_ field from LookupResult

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 3008 matching lines @@
 
   return number;
 }
 
 
 PropertyDetails Map::GetLastDescriptorDetails() {
   return instance_descriptors()->GetDetails(LastAdded());
 }
 
 
-void Map::LookupDescriptor(JSObject* holder,
-                           Name* name,
-                           LookupResult* result) {
+void Map::LookupDescriptor(Name* name, LookupResult* result) {
   DescriptorArray* descriptors = this->instance_descriptors();
   int number = descriptors->SearchWithCache(name, this);
   if (number == DescriptorArray::kNotFound) return result->NotFound();
-  result->DescriptorResult(holder, descriptors->GetDetails(number), number);
+  result->DescriptorResult(descriptors->GetDetails(number), number);
 }
 
 
-void Map::LookupTransition(JSObject* holder, Name* name,
-                           PropertyAttributes attributes,
+void Map::LookupTransition(Name* name, PropertyAttributes attributes,
                            LookupResult* result) {
   int transition_index = this->SearchTransition(kData, name, attributes);
   if (transition_index == TransitionArray::kNotFound) return result->NotFound();
-  result->TransitionResult(holder, this->GetTransition(transition_index));
+  result->TransitionResult(this->GetTransition(transition_index));
 }
 
 
 FixedArrayBase* Map::GetInitialElements() {
   if (has_fast_smi_or_object_elements() ||
       has_fast_double_elements()) {
     DCHECK(!GetHeap()->InNewSpace(GetHeap()->empty_fixed_array()));
     return GetHeap()->empty_fixed_array();
   } else if (has_external_array_elements()) {
     ExternalArray* empty_array = GetHeap()->EmptyExternalArrayForMap(this);
@@ skipping 4578 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_