bug#50733: 28.0.1; project-find-regexp can block Emacs for a long time

[Eli Zaretskii]

> Cc: 50733@debbugs.gnu.org, mardani29@yahoo.es
> From: Dmitry Gutov <dgutov@yandex.ru>
> Date: Fri, 24 Sep 2021 21:17:24 +0300
> 
> On 24.09.2021 20:49, Eli Zaretskii wrote:
> > Hint: they are all in comments.
> 
> It's not an obvious choice, BTW: whether to show references to the 
> identifier in comments.
> 
> Personally, I think I prefer the current behavior of 
> xref-find-references when using Grep for searching.

I won't argue about personal preferences.  IMO, it isn't a matter of
preference, it's a matter of matching between a job you have to do and
the best tool for that job.

> Because, when you are renaming a function, you don't want to forget the 
> references to its name in comments across the project.

Renaming identifiers is not the only job that needs these outputs.