Remove obsolete stack trace string in a message object.

src/heap.cc

 // Copyright 2012 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 3752 matching lines @@
 
   return share;
 }
 
 
 MaybeObject* Heap::AllocateJSMessageObject(String* type,
                                            JSArray* arguments,
                                            int start_position,
                                            int end_position,
                                            Object* script,
-                                           Object* stack_trace,
                                            Object* stack_frames) {
   Object* result;
   { MaybeObject* maybe_result = Allocate(message_object_map(), NEW_SPACE);
     if (!maybe_result->ToObject(&result)) return maybe_result;
   }
   JSMessageObject* message = JSMessageObject::cast(result);
   message->set_properties(Heap::empty_fixed_array(), SKIP_WRITE_BARRIER);
   message->initialize_elements();
   message->set_elements(Heap::empty_fixed_array(), SKIP_WRITE_BARRIER);
   message->set_type(type);
   message->set_arguments(arguments);
   message->set_start_position(start_position);
   message->set_end_position(end_position);
   message->set_script(script);
-  message->set_stack_trace(stack_trace);
   message->set_stack_frames(stack_frames);
   return result;
 }
 
 
 MaybeObject* Heap::AllocateExternalStringFromAscii(
     const ExternalAsciiString::Resource* resource) {
   size_t length = resource->length();
   if (length > static_cast<size_t>(String::kMaxLength)) {
     isolate()->context()->mark_out_of_memory();
@@ skipping 3903 matching lines @@
       static_cast<int>(object_sizes_last_time_[index]));
   CODE_AGE_LIST_COMPLETE(ADJUST_LAST_TIME_OBJECT_COUNT)
 #undef ADJUST_LAST_TIME_OBJECT_COUNT
 
   OS::MemCopy(object_counts_last_time_, object_counts_, sizeof(object_counts_));
   OS::MemCopy(object_sizes_last_time_, object_sizes_, sizeof(object_sizes_));
   ClearObjectStats();
 }
 
 } }  // namespace v8::internal