test262-automation 7298a38552 [v8-test262-automation] Updated curation log with latest revision sha's from export and changed files.
sourceRevisionAtLastExport: 33f2fb0e53d135f0ee17cfccd9d993eb2a6f47de targetRevisionAtLastExport: 31340cbd9add103f586d501b0c3354b7b182abc0
2018-09-14 12:32:18 -04:00

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JavaScript

// 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 foo(a, i) { return a[i] + 0.5; }
foo({}, 1);
Array.prototype.unshift(1.5);
assertTrue(Number.isNaN(foo({}, 1)));
%OptimizeFunctionOnNextCall(foo);
assertTrue(Number.isNaN(foo({}, 1)));