bug#21170: 25.0.50; xref doesn't work with cperl tags

[Eli Zaretskii]

> From: Dmitry Gutov <dgutov@yandex.ru>
> Date: Fri, 31 Jul 2015 22:31:53 +0300
> 
> On 07/31/2015 10:26 PM, Alexis Layton wrote:
> > M-. (xref-find-definitions) does not seem to find tags in Perl files
> > the way find-tag used to. Our TAGS file has both C and Perl tags in
> > it. The C tags still work. The Perl tags claim 'no definitions found'.
> > (It does prompt for the location of the TAGS file as it used to.)
> > Note that we use cperl-mode if that matters.
> 
> How do you generate TAGS?

Also, please show a minimal Perl file that can be used to reproduce
this.

Thanks.