michael@0: var ab = new ArrayBuffer(5);
michael@0: var p = new Proxy(ab, {});
michael@0: var ps = Object.getOwnPropertyDescriptor(Object.prototype, "__proto__").set;
michael@0: var threw = 0;
michael@0: try {
michael@0:     ps.call(p, {});
michael@0: } catch(ex) {
michael@0:     threw = 1;
michael@0: }
michael@0: 
michael@0: reportCompare(1, threw, "Setting __proto__ on a proxy to an ArrayBuffer must throw.");