Return length passed instead of receiver to allow chained assignments like

src/ic.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 1347 matching lines @@
 }
 
 
 Object* StoreIC_ArrayLength(Arguments args) {
   NoHandleAllocation nha;
 
   ASSERT(args.length() == 2);
   JSObject* receiver = JSObject::cast(args[0]);
   Object* len = args[1];
 
-  return receiver->SetElementsLength(len);
+  Object* result = receiver->SetElementsLength(len);
+  if (result->IsFailure()) return result;
+  return len;
 }
 
 
 // Extend storage is called in a store inline cache when
 // it is necessary to extend the properties array of a
 // JSObject.
 Object* SharedStoreIC_ExtendStorage(Arguments args) {
   NoHandleAllocation na;
   ASSERT(args.length() == 3);
 
@@ skipping 42 matching lines @@
 #undef ADDR
 };
 
 
 Address IC::AddressFromUtilityId(IC::UtilityId id) {
   return IC_utilities[id];
 }
 
 
 } }  // namespace v8::internal