michael@0: function f(foo) {
michael@0:     "use strict";
michael@0:     foo.bar;
michael@0: }
michael@0: 
michael@0: var actual;
michael@0: try {
michael@0:     f();
michael@0:     actual = "no error";
michael@0: } catch (x) {
michael@0:     actual = (x instanceof TypeError) ? "type error" : "some other error";
michael@0:     actual += (/use strict/.test(x)) ? " with directive" : " without directive";
michael@0: }
michael@0: 
michael@0: reportCompare("type error without directive", actual,
michael@0:               "decompiled expressions in error messages should not include directive prologues");