Unbreak readline support.

src/d8.h

 // 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 105 matching lines @@
 #endif  // V8_SHARED
 
 
 class LineEditor {
  public:
   enum Type { DUMB = 0, READLINE = 1 };
   LineEditor(Type type, const char* name);
   virtual ~LineEditor() { }
 
   virtual Handle<String> Prompt(const char* prompt) = 0;
-  virtual bool Open() { return true; }
+  virtual bool Open(Isolate* isolate) { return true; }
   virtual bool Close() { return true; }
   virtual void AddHistory(const char* str) { }
 
   const char* name() { return name_; }
   static LineEditor* Get() { return current_; }
  private:
   Type type_;
   const char* name_;
   static LineEditor* current_;
 };
@@ skipping 269 matching lines @@
   static void ExternalArrayWeakCallback(Isolate* isolate,
                                         Persistent<Value> object,
                                         void* data);
 };
 
 
 }  // namespace v8
 
 
 #endif  // V8_D8_H_