Bugfix in hydrogen GVN.

src/hydrogen.cc

 // Copyright 2013 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/hydrogen.h"
 
 #include <sstream>
 
 #include "src/v8.h"
 
@@ skipping 6903 matching lines @@
 
 HInstruction* HOptimizedGraphBuilder::BuildMonomorphicElementAccess(
     HValue* object,
     HValue* key,
     HValue* val,
     HValue* dependency,
     Handle<Map> map,
     PropertyAccessType access_type,
     KeyedAccessStoreMode store_mode) {
   HCheckMaps* checked_object = Add<HCheckMaps>(object, map, dependency);
-  if (dependency) {
-    checked_object->ClearDependsOnFlag(kElementsKind);
-  }
 
   if (access_type == STORE && map->prototype()->IsJSObject()) {
     // monomorphic stores need a prototype chain check because shape
     // changes could allow callbacks on elements in the chain that
     // aren't compatible with monomorphic keyed stores.
     PrototypeIterator iter(map);
     JSObject* holder = NULL;
     while (!iter.IsAtEnd()) {
       holder = JSObject::cast(*PrototypeIterator::GetCurrent(iter));
       iter.Advance();
@@ skipping 6451 matching lines @@
   if (ShouldProduceTraceOutput()) {
     isolate()->GetHTracer()->TraceHydrogen(name(), graph_);
   }
 
 #ifdef DEBUG
   graph_->Verify(false);  // No full verify.
 #endif
 }
 
 } }  // namespace v8::internal