Another fix for debugging stack traces and captured variables.

tools/ddbg.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // Simple interactive debugger shell that connects to the Dart VM's debugger
 // connection port.
 
 import "dart:io";
 import "dart:json" as json;
 import "dart:utf";
@@ skipping 375 matching lines @@
 void handleStackTraceResponse(response) {
   Map result = response["result"];
   List callFrames = result["callFrames"];
   assert(callFrames != null);
   printStackTrace(callFrames);
 }
 
 
 void printStackFrame(frame_num, Map frame) {
   var fname = frame["functionName"];
-  var libId = frame["libraryId"];
+  var libId = frame["location"]["libraryId"];
   var url = frame["location"]["url"];
-  var line = frame["location"]["lineNumber"];
-  print("$frame_num  $fname ($url:$line) (lib $libId)");
+  var toff = frame["location"]["tokenOffset"];
+  print("$frame_num  $fname (url: $url token: $toff lib: $libId)");
   List locals = frame["locals"];
   for (int i = 0; i < locals.length; i++) {
     printNamedObject(locals[i]);
   }
 }
 
 
 void printStackTrace(List frames) {
   for (int i = 0; i < frames.length; i++) {
     printStackFrame(i, frames[i]);
@@ skipping 193 matching lines @@
       process.stdin.close();
       process.exitCode.then((int exitCode) {
         print('${arguments.join(" ")} exited with $exitCode');
       });
       debuggerMain();
     });
   } else {
     debuggerMain();
   }
 }