I don't see much advantage, it's always used as a string (through `toString`, in string concatenations). I feel that a new class adds nothing to clarity either (as long as the String parameter had a good name in the first place). Also, the class doesn't carry it's own weight (the only method is `toString`, and that's overridden to return the nested string).

There are many other places where line delimiters are used as plain strings (formatter, indenter, quick fixes), so it's inconsistent (but don't get me wrong, I don't suggest to use this class in other places).