src/v8/test/mjsunit/regress/regress-933179.js

// Copyright 2019 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.

var o = { ...{ length : 1 } };

o.x = 1;
delete o.x;

o.length = 2;