// Copyright 2016 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.if(this.Intl){assertInstanceof(Intl.NumberFormat.call(newProxy({},{})),Intl.NumberFormat);assertThrows(()=>Intl.DateTimeFormat.prototype.formatToParts.call(newProxy({},{})),TypeError);}