Remove usage of deprecated APIs from v8 itself

src/allocation-tracker.cc

 // Copyright 2013 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 254 matching lines @@
   info_->column = GetScriptColumnNumber(script_, start_position_);
 }
 
 
 void AllocationTracker::UnresolvedLocation::HandleWeakScript(
     v8::Isolate* isolate,
     v8::Persistent<v8::Value>* obj,
     void* data) {
   UnresolvedLocation* location = reinterpret_cast<UnresolvedLocation*>(data);
   location->script_ = Handle<Script>::null();
-  obj->Dispose();
+  obj->Reset();
 }
 
 
 } }  // namespace v8::internal