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// 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.
// Flags: --allow-natives-syntax
function f(a, i, v) { a[i] = v; }
f("make it generic", 0, 0);
(function TestIsConcatSpreadableProtector() {
var o = {length: 1, '0': 99};
%OptimizeObjectForAddingMultipleProperties(o, 0);
f(o, Symbol.isConcatSpreadable, true);
assertEquals([99], [].concat(o));
})();
(function TestSpeciesProtector() {
function MyArray() {}
assertTrue(%ArraySpeciesProtector());
f(Array.prototype, "constructor", MyArray);
assertFalse(%ArraySpeciesProtector());
})();
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