Back out 97036ab72558 which inappropriately compared turds to third parties.
1 function testInterpreterReentry3() {
2 for (let i=0;i<5;++i) this["y" + i] = function(){};
3 this.__defineGetter__('e', function (x2) { yield; });
4 [1 for each (a in this) for (b in {})];
7 assertEq(testInterpreterReentry3(), 1);