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// 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.
function Stringified(toString) {
var valueOf = "-" + toString + "-";
return {
toString: function() { return toString; },
valueOf: function() { return valueOf; }
};
}
assertEquals("a.b.", "a.".concat(Stringified("b.")));
assertEquals("a.b.c.", "a.".concat(Stringified("b."), Stringified("c.")));
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