michael@0: function C(a, b) {
michael@0:     this.a = a;
michael@0:     this.b = b;
michael@0: }
michael@0: var f = C.bind(null, 2);
michael@0: Object.defineProperty(f, "prototype", {get: function () { throw "FAIL"; }});
michael@0: var x;
michael@0: for (var i = 0; i < 10; i++)
michael@0:     x = new f(i);
michael@0: assertEq(toString.call(x), "[object Object]");
michael@0: assertEq(Object.getPrototypeOf(x), C.prototype);
michael@0: assertEq(x.a, 2);
michael@0: assertEq(x.b, 9);