Change Context::New not create persistent handles.

src/debug.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 856 matching lines @@
 
   debugger->set_compiling_natives(false);
 
   // Make sure we mark the debugger as not loading before we might
   // return.
   debugger->set_loading_debugger(false);
 
   // Check for caught exceptions.
   if (caught_exception) return false;
 
-  // Debugger loaded.
-  debug_context_ = context;
+  // Debugger loaded, create debugger context global handle.
+  debug_context_ = Handle<Context>::cast(
+      isolate_->global_handles()->Create(*context));
 
   return true;
 }
 
 
 void Debug::Unload() {
   // Return debugger is not loaded.
   if (!IsLoaded()) {
     return;
   }
 
   // Clear the script cache.
   DestroyScriptCache();
 
   // Clear debugger context global handle.
-  Isolate::Current()->global_handles()->Destroy(
+  isolate_->global_handles()->Destroy(
       reinterpret_cast<Object**>(debug_context_.location()));
   debug_context_ = Handle<Context>();
 }
 
 
 // Set the flag indicating that preemption happened during debugging.
 void Debug::PreemptionWhileInDebugger() {
   ASSERT(InDebugger());
   Debug::set_interrupts_pending(PREEMPT);
 }
@@ skipping 2889 matching lines @@
     {
       Locker locker(reinterpret_cast<v8::Isolate*>(isolate_));
       isolate_->debugger()->CallMessageDispatchHandler();
     }
   }
 }
 
 #endif  // ENABLE_DEBUGGER_SUPPORT
 
 } }  // namespace v8::internal