michael@0: // for-of can iterate arguments objects.
michael@0: 
michael@0: load(libdir + "iteration.js");
michael@0: 
michael@0: // Arguments objects do not have a .@@iterator() method by default.
michael@0: // Install one on Object.prototype.
michael@0: Object.prototype[std_iterator] = Array.prototype[std_iterator];
michael@0: 
michael@0: var s;
michael@0: function test() {
michael@0:     for (var v of arguments)
michael@0:         s += v;
michael@0: }
michael@0: 
michael@0: s = '';
michael@0: test();
michael@0: assertEq(s, '');
michael@0: 
michael@0: s = '';
michael@0: test('x', 'y');
michael@0: assertEq(s, 'xy');