Revert 428. Breaks 64-bit compilation.

src/debug.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 592 matching lines @@
     return;
   }
 
   // Clear debugger context global handle.
   GlobalHandles::Destroy(reinterpret_cast<Object**>(debug_context_.location()));
   debug_context_ = Handle<Context>();
 }
 
 
 void Debug::Iterate(ObjectVisitor* v) {
-#define VISIT(field) v->VisitPointer(bit_cast<Object**, Code**>(&(field)));
+#define VISIT(field) v->VisitPointer(reinterpret_cast<Object**>(&(field)));
   VISIT(debug_break_return_entry_);
   VISIT(debug_break_return_);
 #undef VISIT
 }
 
 
 Object* Debug::Break(Arguments args) {
   HandleScope scope;
   ASSERT(args.length() == 0);
 
@@ skipping 1094 matching lines @@
   v8::Local<v8::Value> json_event = *fun->Call(api_event_data, 0, NULL);
   v8::Local<v8::String> json_event_string;
   if (!try_catch.HasCaught()) {
     if (!json_event->IsUndefined()) {
       json_event_string = json_event->ToString();
       if (FLAG_trace_debug_json) {
         PrintLn(json_event_string);
       }
       v8::String::Value val(json_event_string);
       Vector<uint16_t> str(reinterpret_cast<uint16_t*>(*val),
-                           json_event_string->Length());
+                          json_event_string->Length());
       SendMessage(str);
     } else {
       SendMessage(Vector<uint16_t>::empty());
     }
   } else {
     PrintLn(try_catch.Exception());
     SendMessage(Vector<uint16_t>::empty());
   }
 }
 
@@ skipping 225 matching lines @@
 }
 
 
 void LockingMessageQueue::Clear() {
   ScopedLock sl(lock_);
   queue_.Clear();
 }
 
 
 } }  // namespace v8::internal