1 Tests that evaluating something in console won't crash the browser if undefined value is overriden. The test passes if it doesn't crash. Bug 64155.
3 var x = {a:1}; x.self = x; undefined = x;
4 Object {a: 1, self: Object}
6 VM:2 Uncaught ReferenceError: unknownVar is not defined(…)
7 (anonymous function) @ VM:2