bug#20629: 25.0.50; Regression: TAGS broken, can't find anything in C++ files.

[Eli Zaretskii]

> Cc: 20629@debbugs.gnu.org
> From: Dmitry Gutov <dgutov@yandex.ru>
> Date: Sat, 30 May 2015 15:30:55 +0300
> 
> On 05/30/2015 03:06 PM, Eli Zaretskii wrote:
> 
> > I tried it, and I think the completion display is better now.
> 
> Better how?

It seemed to show both qualified and unqualified names, AFAICS.

> > Should I install the change for emitting 2 lines in TAGS, for both
> > unqualified and qualified tag names?
> 
> Err, these changes are orthogonal, if not to say complete opposites. If 
> there are two lines in TAGS for each item, no change to 
> etags-tags-completion-table should be necessary.

The question still stands.

> I was rather thinking to make tag-implicit-name-match-p more strict, so 
> it doesn't match if the explicit tag name is present on that line.

But tag-implicit-name-match-p is called after tag-exact-match-p, so
the latter cannot be the fallback for the former.