src/v8/test/mjsunit/regress/regress-crbug-768875.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.

this.__defineGetter__('x', function() { return 0; });
function store_x() {
  x = 23;
}
store_x();
store_x();
assertEquals(0, x);
Realm.eval(Realm.current(), "let x = 42");
assertEquals(42, x);
store_x();
assertEquals(23, x);


this.__defineGetter__('y', function() { return 0; });
function store_y() {
  y = 23;
}
store_y();
store_y();
assertEquals(0, y);
Realm.eval(Realm.current(), "const y = 42");
assertEquals(42, y);
assertThrows(store_y, TypeError);
assertEquals(42, y);