Open new handle scope when deep copying.

src/objects.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 5617 matching lines @@
     isolate->StackOverflow();
     return Handle<JSObject>::null();
   }
 
   if (object->map()->is_deprecated()) {
     MigrateInstance(object);
   }
 
   Handle<JSObject> copy = Copy(object);
 
+  HandleScope scope(isolate);
+
   // Deep copy local properties.
   if (copy->HasFastProperties()) {
     Handle<DescriptorArray> descriptors(copy->map()->instance_descriptors());
     int limit = copy->map()->NumberOfOwnDescriptors();
     for (int i = 0; i < limit; i++) {
       PropertyDetails details = descriptors->GetDetails(i);
       if (details.type() != FIELD) continue;
       int index = descriptors->GetFieldIndex(i);
       Handle<Object> value(object->RawFastPropertyAt(index), isolate);
       if (value->IsJSObject()) {
@@ skipping 10494 matching lines @@
 #define ERROR_MESSAGES_TEXTS(C, T) T,
   static const char* error_messages_[] = {
       ERROR_MESSAGES_LIST(ERROR_MESSAGES_TEXTS)
   };
 #undef ERROR_MESSAGES_TEXTS
   return error_messages_[reason];
 }
 
 
 } }  // namespace v8::internal