Thu, 22 Jan 2015 13:21:57 +0100
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
1 // for-of on a slow Array consults the prototype chain when it encounters a hole.
3 var a = [0, , , 3];
4 a.slow = true;
5 Object.prototype[1] = 'peek1';
6 Array.prototype[2] = 'peek2';
8 var log = [];
9 for (var x of a)
10 log.push(x);
11 assertEq(log[1], 'peek1');
12 assertEq(log[2], 'peek2');
13 assertEq(log.join(), "0,peek1,peek2,3");