michael@0: var o = {valueOf: function() { return -0x80000000; }};
michael@0: var s = {valueOf: function() { return 0; }};
michael@0: 
michael@0: for (var i = 0; i < 70; i++) {
michael@0:     assertEq(o >>> 1, 0x40000000);
michael@0:     assertEq(o >>> 0, 0x80000000);
michael@0:     assertEq(1 >>> s, 1);
michael@0:     assertEq(-1 >>> s, 0xffffffff);
michael@0: }