The Tor Browser / file revision

 // |jit-test| debug

 // The GC can cope with old and new breakpoints at the same position.

 // This is a regression test for a bug Bill McCloskey found just by looking at

 // the source code. See bug 677386 comment 8. Here we're testing that the trap

 // string is correctly marked. (The silly expression for the trap string is to

 // ensure that it isn't constant-folded; it's harder to get a compile-time

 // constant to be GC'd.)

 var g = newGlobal();

 g.eval("var d = 0;\n" +

        "function f() { return 'ok'; }\n" +

        "trap(f, 0, Array(17).join('\\n') + 'd++;');\n");

 var dbg = new Debugger;

 var gw = dbg.addDebuggee(g);

 var fw = gw.getOwnPropertyDescriptor("f").value;

 var bp = {hits: 0, hit: function (frame) { this.hits++; }};

 fw.script.setBreakpoint(0, bp);

 gc();

 g.f();

 assertEq(g.d, 1);

 assertEq(bp.hits, 1);