The Tor Browser / file revision

 // Lazy scripts should correctly report line offsets

 var g = newGlobal();

 var dbg = new Debugger();

 g.eval("// Header comment\n" +   // <- line 6 in this file

        "\n" +

        "\n" +

        "function f(n) {\n" +     // <- line 9 in this file

        "    var foo = '!';\n" +

        "}");

 dbg.addDebuggee(g);

 var scripts = dbg.findScripts();

 for (var i = 0; i < scripts.length; i++) {

   // Nothing should have offsets for the deffun on line 9 if lazy scripts

   // correctly update the position.

   assertEq(scripts[i].getLineOffsets(9).length, 0);

 }