michael@0: var s, x = 0;
michael@0: 
michael@0: s = '';
michael@0: for (let x = x; x < 3; x++)
michael@0:     s += x;
michael@0: assertEq(s, '012');
michael@0: 
michael@0: s = '';
michael@0: for (let x = eval('x'); x < 3; x++)
michael@0:     s += x;
michael@0: assertEq(s, '012');
michael@0: 
michael@0: s = ''
michael@0: for (let x = function () { with ({}) return x; }(); x < 3; x++)
michael@0:     s += x;
michael@0: assertEq(s, '012');