Bring 4554 to the 2.1 branch....

src/runtime.cc

 // Copyright 2006-2009 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 4100 matching lines @@
       Top::ReportFailedAccessCheck(*obj, v8::ACCESS_KEYS);
       return *Factory::NewJSArray(0);
     }
     obj = Handle<JSObject>(JSObject::cast(obj->GetPrototype()));
   }
 
   // Find the number of objects making up this.
   int length = LocalPrototypeChainLength(*obj);
 
   // Find the number of local properties for each of the objects.
-  int* local_property_count = NewArray<int>(length);
+  ScopedVector<int> local_property_count(length);
   int total_property_count = 0;
   Handle<JSObject> jsproto = obj;
   for (int i = 0; i < length; i++) {
     // Only collect names if access is permitted.
     if (jsproto->IsAccessCheckNeeded() &&
         !Top::MayNamedAccess(*jsproto,
                              Heap::undefined_value(),
                              v8::ACCESS_KEYS)) {
       Top::ReportFailedAccessCheck(*jsproto, v8::ACCESS_KEYS);
       return *Factory::NewJSArray(0);
@@ skipping 32 matching lines @@
     int dest_pos = 0;
     for (int i = 0; i < total_property_count; i++) {
       Object* name = old_names->get(i);
       if (name == Heap::hidden_symbol()) {
         continue;
       }
       names->set(dest_pos++, name);
     }
   }
 
-  DeleteArray(local_property_count);
   return *Factory::NewJSArrayWithElements(names);
 }
 
 
 // Return the names of the local indexed properties.
 // args[0]: object
 static Object* Runtime_GetLocalElementNames(Arguments args) {
   HandleScope scope;
   ASSERT(args.length() == 1);
   if (!args[0]->IsJSObject()) {
@@ skipping 5804 matching lines @@
   } else {
     // Handle last resort GC and make sure to allow future allocations
     // to grow the heap without causing GCs (if possible).
     Counters::gc_last_resort_from_js.Increment();
     Heap::CollectAllGarbage(false);
   }
 }
 
 
 } }  // namespace v8::internal