src/v8/test/mjsunit/regress/regress-6970.js

// 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.

assertEquals(42, (({a = {b} = {b: 42}}) => a.b)({}));
assertEquals(42, b);