Fix the exception order by remember JS handler in an external handler.

include/v8.h

 // Copyright 2007-2008 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 2034 matching lines @@
    * occurred.  True by default.
    */
   void SetCaptureMessage(bool value);
 
  public:
   TryCatch* next_;
   void* exception_;
   void* message_;
   bool is_verbose_;
   bool capture_message_;
+  void* js_handler_;
 };
 
 
 // --- C o n t e x t ---
 
 
 /**
  * Ignore
  */
 class EXPORT ExtensionConfiguration {
@@ skipping 366 matching lines @@
 
 }  // namespace v8
 
 
 #undef EXPORT
 #undef EXPORT_INLINE
 #undef TYPE_CHECK
 
 
 #endif  // V8_H_