Create a separate class to encapsulate ScopeInfo serialization....

src/frames.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 514 matching lines @@
   HandleScope scope;
   Object* receiver = this->receiver();
   Object* function = this->function();
 
   accumulator->PrintSecurityTokenIfChanged(function);
   PrintIndex(accumulator, mode, index);
   Code* code = NULL;
   if (IsConstructor()) accumulator->Add("new ");
   accumulator->PrintFunction(function, receiver, &code);
 
-  Handle<Object> scope_info(ScopeInfo<>::EmptyHeapObject());
+  Handle<SerializedScopeInfo> scope_info(SerializedScopeInfo::Empty());
 
   if (function->IsJSFunction()) {
     Handle<SharedFunctionInfo> shared(JSFunction::cast(function)->shared());
-    scope_info = Handle<Object>(shared->scope_info());
+    scope_info = Handle<SerializedScopeInfo>(shared->scope_info());
     Object* script_obj = shared->script();
     if (script_obj->IsScript()) {
       Handle<Script> script(Script::cast(script_obj));
       accumulator->Add(" [");
       accumulator->PrintName(script->name());
 
       Address pc = this->pc();
       if (code != NULL && code->kind() == Code::FUNCTION &&
           pc >= code->instruction_start() && pc < code->instruction_end()) {
         int source_pos = code->SourcePosition(pc);
@@ skipping 267 matching lines @@
   ZoneList<StackFrame*> list(10);
   for (StackFrameIterator it; !it.done(); it.Advance()) {
     StackFrame* frame = AllocateFrameCopy(it.frame());
     list.Add(frame);
   }
   return list.ToVector();
 }
 
 
 } }  // namespace v8::internal