michael@0: function f(s) {
michael@0:     eval(s);
michael@0:     return function() {
michael@0:         with({}) {};
michael@0:         return b;
michael@0:     };
michael@0: }
michael@0: var b = 1;
michael@0: var g1 = f("");
michael@0: var g2 = f("var b = 2;");
michael@0: g1('');
michael@0: assertEq(g2(''), 2);