The Tor Browser / file revision

 function run_test()

 {

   Components.utils.import("resource://gre/modules/jsdebugger.jsm");

   addDebuggerToGlobal(this);

   var g = testGlobal("test1");

   var dbg = new Debugger();

   dbg.addDebuggee(g);

   dbg.onDebuggerStatement = function(aFrame) {

     let args = aFrame.arguments;

     try {

       args[0];

       do_check_true(true);

     } catch(ex) {

       do_check_true(false);

     }

   };

   g.eval("function stopMe(arg) {debugger;}");

   g2 = testGlobal("test2");

   g2.g = g;

   g2.eval("(" + function createBadEvent() {

     let parser = Components.classes["@mozilla.org/xmlextras/domparser;1"].createInstance(Components.interfaces.nsIDOMParser);

     let doc = parser.parseFromString("<foo></foo>", "text/xml");

     g.stopMe(doc.createEvent("MouseEvent"));

   } + ")()");

   dbg.enabled = false;

 }