bug#21816: elisp-mode-tests fails on a case-preserving filesystem

[Eli Zaretskii]

> Cc: 21816@debbugs.gnu.org, stephen_leake@stephe-leake.org
> From: Dmitry Gutov <dgutov@yandex.ru>
> Date: Tue, 3 Nov 2015 20:13:58 +0200
> 
> On 11/03/2015 06:53 PM, Eli Zaretskii wrote:
> 
> > You mean, ref doesn't know that some strings are file names and some
> > aren't?  Then how does it know they are strings and not symbols or
> > something else?  This is Lisp, not C.
> 
> Lisp has a "string" data type. It doesn't have a "file" data type. It's 
> not Java.

File names are not strings.

If we need to know that a string is a file name, we can put some
property on it.