michael@0: var o = {y: function () {}};
michael@0: var a = [o, o, o, o, o, o, o, o, o];
michael@0: a[7] = {};
michael@0: try {
michael@0:     for (var i = 0; i < 9; i++)
michael@0:         a[i].y();
michael@0: } catch (exc) {
michael@0:     assertEq(exc.name, "TypeError"); // should happen when i == 7
michael@0: }