test/mjsunit/regress/regress-554865.js

// Copyright 2015 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: --harmony-default-parameters

(function() {
  var x = {};
  ((y = [42]) => assertEquals(42, y[0]))();
})();