// Copyright 2017 the V8 project authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Flags: --expose-gc

prop = "property";

function f(o) {
  return o.prop;
}

f(this);
f(this);

delete this.prop;

gc();
assertEquals(undefined, f(this));
