Eliminate redundant descriptor ElementTransitionAndStoreDescriptor.

src/code-stubs-hydrogen.cc

 // 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.
 
 #include "src/v8.h"
 
 #include "src/bailout-reason.h"
 #include "src/code-stubs.h"
 #include "src/field-index.h"
 #include "src/hydrogen.h"
@@ skipping 1811 matching lines @@
 }
 
 
 Handle<Code> StoreGlobalViaContextStub::GenerateCode() {
   return DoGenerateCode(this);
 }
 
 
 template <>
 HValue* CodeStubGraphBuilder<ElementsTransitionAndStoreStub>::BuildCodeStub() {
-  HValue* value = GetParameter(ElementsTransitionAndStoreStub::kValueIndex);
-  HValue* map = GetParameter(ElementsTransitionAndStoreStub::kMapIndex);
-  HValue* key = GetParameter(ElementsTransitionAndStoreStub::kKeyIndex);
-  HValue* object = GetParameter(ElementsTransitionAndStoreStub::kObjectIndex);
+  HValue* object = GetParameter(StoreTransitionDescriptor::kReceiverIndex);
+  HValue* key = GetParameter(StoreTransitionDescriptor::kNameIndex);
+  HValue* value = GetParameter(StoreTransitionDescriptor::kValueIndex);
+  HValue* map = GetParameter(StoreTransitionDescriptor::kMapIndex);
 
   if (FLAG_trace_elements_transitions) {
     // Tracing elements transitions is the job of the runtime.
     Add<HDeoptimize>(Deoptimizer::kTracingElementsTransitions,
                      Deoptimizer::EAGER);
   } else {
     info()->MarkAsSavesCallerDoubles();
 
     BuildTransitionElementsKind(object, map,
                                 casted_stub()->from_kind(),
@@ skipping 641 matching lines @@
   return Pop();
 }
 
 
 Handle<Code> KeyedLoadGenericStub::GenerateCode() {
   return DoGenerateCode(this);
 }
 
 }  // namespace internal
 }  // namespace v8