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 // Setting an onPop handler from an onPop handler doesn't throw, but the

 // new handler doesn't fire.

 var g = newGlobal();

 var dbg = new Debugger(g);

 var log;

 dbg.onDebuggerStatement = function handleDebugger(frame) {

     log += 'd';

     assertEq(frame.type, "eval");

     frame.onPop = function firstHandlePop(c) {

         log +=')';

         assertEq(c.return, 'on investment');

         this.onPop = function secondHandlePop(c) {

             assertEq("secondHandlePop was called", "secondHandlePop should never be called");

         };

     };

 };

 log = "";

 g.eval("debugger; 'on investment';");

 assertEq(log, 'd)');