Merge r8032 to the 3.1 branch

src/builtins.cc

 // Copyright 2006-2008 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 355 matching lines @@
   if (array_proto->elements() != Heap::empty_fixed_array()) return false;
   // Hidden prototype
   array_proto = JSObject::cast(array_proto->GetPrototype());
   ASSERT(array_proto->elements() == Heap::empty_fixed_array());
   // Object.prototype
   Object* proto = array_proto->GetPrototype();
   if (proto == Heap::null_value()) return false;
   array_proto = JSObject::cast(proto);
   if (array_proto != global_context->initial_object_prototype()) return false;
   if (array_proto->elements() != Heap::empty_fixed_array()) return false;
-  ASSERT(array_proto->GetPrototype()->IsNull());
-  return true;
+  return array_proto->GetPrototype()->IsNull();
 }
 
 
 MUST_USE_RESULT
 static inline MaybeObject* EnsureJSArrayWithWritableFastElements(
     Object* receiver) {
   if (!receiver->IsJSArray()) return NULL;
   JSArray* array = JSArray::cast(receiver);
   HeapObject* elms = array->elements();
   if (elms->map() == Heap::fixed_array_map()) return elms;
@@ skipping 1189 matching lines @@
       if (entry->contains(pc)) {
         return names_[i];
       }
     }
   }
   return NULL;
 }
 
 
 } }  // namespace v8::internal