// Copyright 2019 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-syntaxvaro=['3'];functionfoo(i){o.x=i;}foo("string");Object.preventExtensions(o);Object.seal(o);print('foo');foo(0);%HeapObjectVerify(o);assertEquals(o.x,0);