michael@0: called = 0;
michael@0: Object.defineProperty(Object.prototype, 0, {set: function() { called++; }});
michael@0: function testInit()
michael@0: {
michael@0:   var a = [];
michael@0:   for (var i = 0; i < 5; i++)
michael@0:     a[i] = 0;
michael@0: }
michael@0: for (var i = 0; i < 100; i++)
michael@0:   testInit();
michael@0: assertEq(called, 100);