// Copyright 2014 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 --enable-slow-asserts
function f() {
var x = new Array(0);
x[-1] = -1;
Object.observe(x, function() { });
}
f();
f();