Further reduce LookupResult usage

src/ic.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/accessors.h"
 #include "src/api.h"
 #include "src/arguments.h"
 #include "src/codegen.h"
@@ skipping 260 matching lines @@
   DCHECK(flag != kCacheOnPrototypeReceiverIsDictionary);
 
   if (state() == MONOMORPHIC) {
     int index = ic_holder_map->IndexInCodeCache(*name, *target());
     if (index >= 0) {
       ic_holder_map->RemoveFromCodeCache(*name, *target(), index);
     }
   }
 
   if (receiver->IsGlobalObject()) {
-    LookupResult lookup(isolate());
-    GlobalObject* global = GlobalObject::cast(*receiver);
-    global->LookupOwnRealNamedProperty(name, &lookup);
-    if (!lookup.IsFound()) return false;
-    PropertyCell* cell = global->GetPropertyCell(&lookup);
+    Handle<GlobalObject> global = Handle<GlobalObject>::cast(receiver);
+    LookupIterator it(global, name, LookupIterator::CHECK_PROPERTY);
+    if (!it.IsFound() || !it.HasProperty()) return false;
+    Handle<PropertyCell> cell = it.GetPropertyCell();
     return cell->type()->IsConstant();
   }
 
   return true;
 }
 
 
 bool IC::IsNameCompatibleWithPrototypeFailure(Handle<Object> name) {
   if (target()->is_keyed_stub()) {
     // Determine whether the failure is due to a name failure.
@@ skipping 2878 matching lines @@
 #undef ADDR
 };
 
 
 Address IC::AddressFromUtilityId(IC::UtilityId id) {
   return IC_utilities[id];
 }
 
 
 } }  // namespace v8::internal