Show user script source line that caused exception intead of a line in a nati...

src/frames.h

 // Copyright 2006-2008 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 571 matching lines @@
 
 
 // NOTE: The stack trace frame iterator is an iterator that only
 // traverse proper JavaScript frames; that is JavaScript frames that
 // have proper JavaScript functions. This excludes the problematic
 // functions in runtime.js.
 class StackTraceFrameIterator: public JavaScriptFrameIterator {
  public:
   StackTraceFrameIterator();
   void Advance();
+
+ private:
+  bool IsValidFrame();
 };
 
 
 class SafeStackFrameIterator BASE_EMBEDDED {
  public:
   SafeStackFrameIterator(Address fp, Address sp,
                          Address low_bound, Address high_bound);
 
   StackFrame* frame() const {
     ASSERT(is_working_iterator_);
@@ skipping 49 matching lines @@
   JavaScriptFrame* FindJavaScriptFrame(int n);
 
  private:
   StackFrameIterator iterator_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_FRAMES_H_