Provide method for getting Isolate by v8::Message

include/v8.h

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 /** \mainpage V8 API Reference Guide
  *
  * V8 is Google's open source JavaScript engine.
  *
  * This set of documents provides reference material generated from the
  * V8 header file, include/v8.h.
@@ skipping 1460 matching lines @@
    */
   V8_DEPRECATE_SOON("Use maybe version", int GetEndColumn()) const;
   Maybe<int> GetEndColumn(Local<Context> context) const;
 
   /**
    * Passes on the value set by the embedder when it fed the script from which
    * this Message was generated to V8.
    */
   bool IsSharedCrossOrigin() const;
 
+  /**
+   * Returns the Isolate where the error occured.
+   */
+  Isolate* GetIsolate() const;
+
   // TODO(1245381): Print to a string instead of on a FILE.
   static void PrintCurrentStackTrace(Isolate* isolate, FILE* out);
 
   static const int kNoLineNumberInfo = 0;
   static const int kNoColumnInfo = 0;
   static const int kNoScriptIdInfo = 0;
 };
 
 
 /**
@@ skipping 6377 matching lines @@
  */
 
 
 }  // namespace v8
 
 
 #undef TYPE_CHECK
 
 
 #endif  // V8_H_