src/third_party/v8/test/mjsunit/regress/regress-object-assign-deprecated-2.js

// Copyright 2016 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 x = {a:1, b:2};
Object.defineProperty(x, "c", {set(v) {}})
var y = {get c() { return {a:1, b:2.5} }};
Object.assign(x, y, x);