text: // Copyright 2016 Microsoft, Inc. All rights reserved.
  // This code is governed by the BSD license found in the LICENSE file.
  
  /*---
  author: Brian Terlson <brian.terlson@microsoft.com>
  esid: sec-async-function-constructor-prototype
  description: AsyncFunction has a prototype property with writable false, enumerable false, configurable false.
  includes: [propertyHelper.js]
  ---*/
  
  var AsyncFunction = async function foo() { }.constructor;
  verifyNotConfigurable(AsyncFunction, 'prototype');
  verifyNotWritable(AsyncFunction, 'prototype');
  verifyNotEnumerable(AsyncFunction, 'prototype');
  