text: // Copyright (C) 2015 the V8 project authors. All rights reserved.
  // This code is governed by the BSD license found in the LICENSE file.
  /*---
  es6id: 9.5.10
  description: >
      [[Delete]] (P)
  
      8. If trap is undefined, then Return target.[[Delete]](P).
  flags: [noStrict]
  ---*/
  
  var target = {
    attr: 1
  };
  var p = new Proxy(target, {});
  
  assert.sameValue(delete p.attr, true);
  assert.sameValue(delete p.notThere, true);
  assert.sameValue(
    Object.getOwnPropertyDescriptor(target, "attr"),
    undefined
  );
  
  Object.defineProperty(target, "attr", {
    configurable: false,
    enumerable: true,
    value: 1
  });
  
  assert.sameValue(delete p.attr, false);
  