// Copyright 2015 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.functionStringified(toString){varvalueOf="-"+toString+"-";return{toString:function(){returntoString;},valueOf:function(){returnvalueOf;}};}assertEquals("a.b.","a.".concat(Stringified("b.")));assertEquals("a.b.c.","a.".concat(Stringified("b."),Stringified("c.")));