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// Copyright 2018 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.
// Fill up the Array prototype's elements.
for (let i = 0; i < 100; i++) Array.prototype.unshift(3.14);
// Create a holey double elements array.
const o31 = [1.1];
o31[37] = 2.2;
// Concat converts to dictionary elements.
const o51 = o31.concat(false);
// Set one element to undefined to trigger the movement bug.
o51[0] = undefined;
assertEquals(o51.length, 39);
// Sort triggers the bug.
o51.sort();
assertEquals(o51.length, 39);
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