michael@0: var x = {};
michael@0: function f() { y.prop; }
michael@0: x.toStr = function () { f(); };
michael@0: try {
michael@0:     f();
michael@0: } catch (e) { }
michael@0: try {
michael@0:     x.toStr();
michael@0: } catch (e) { }
michael@0: try {
michael@0:     function f() { which = 2; }
michael@0:     x.toStr();
michael@0: } catch (e) { which = 1; }
michael@0: assertEq(which, 2);