bug#22947: 25.0.92; xref-find-definitions fails for Perl & etags

[Eli Zaretskii]

> Cc: 22947@debbugs.gnu.org
> From: Dmitry Gutov <dgutov@yandex.ru>
> Date: Thu, 10 Mar 2016 15:36:58 +0200
> 
> On 03/10/2016 03:20 PM, Eli Zaretskii wrote:
> 
> > Is there something that should be done in etags for this issue?  If
> > so, what?
> 
> The usual, I think: Bob is searching for perl_method_name, but the 
> entries in TAGS have names like Perl::Package::perl_method_name.
> 
> So we need to generate unqualified tag names, in addition to (or simply 
> instead of) the qualified ones like the above.

I decided to go the same way as with C-like languages: by default
produce unqualified tag names, unless -Q was specified.

Bob, can you try etags from the latest emacs-25 branch?  I tried your
recipe, and it seems to work well with "meals", but I'm not a power
Perl user, so maybe there's some left-overs that we need to handle.

Thanks.