New version of v8 from bleeding edge at revision 3649
diff --git a/src/execution.h b/src/execution.h
index 52198c4..10683d6 100644
--- a/src/execution.h
+++ b/src/execution.h
@@ -122,6 +122,7 @@
                                           Handle<Object> is_global);
 #ifdef ENABLE_DEBUGGER_SUPPORT
   static Object* DebugBreakHelper();
+  static void ProcessDebugMesssages(bool debug_command_only);
 #endif
 
   // If the stack guard is triggered, but it is not an actual