michael@0: // Nested for-of loops on the same array get distinct iterators.
michael@0: 
michael@0: var a = [1, 2, 3];
michael@0: var s = '';
michael@0: for (var x of a)
michael@0:     for (var y of a)
michael@0:         s += '' + x + y + ',';
michael@0: assertEq(s, '11,12,13,21,22,23,31,32,33,');