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 // |jit-test| debug

 // Debugger.Script instances with live referents stay alive.

 var N = 4;

 var g = newGlobal();

 var dbg = new Debugger(g);

 var i;

 dbg.onDebuggerStatement = function (frame) {

     assertEq(frame.script instanceof Debugger.Script, true);

     frame.script.id = i;

 };

 g.eval('var arr = [];')

 for (i = 0; i < N; i++)  // loop to defeat conservative GC

     g.eval("arr.push(function () { debugger }); arr[arr.length - 1]();");

 gc();

 var hits;

 dbg.onDebuggerStatement = function (frame) {

     hits++;

     assertEq(frame.script.id, i);

 };

 hits = 0;

 for (i = 0; i < N; i++)

     g.arr[i]();

 assertEq(hits, N);