bug#23223: 25.0.92; Can xref-find-references be sped up?

[Eli Zaretskii]

> Cc: 23223@debbugs.gnu.org
> From: Dmitry Gutov <dgutov@yandex.ru>
> Date: Wed, 13 Apr 2016 13:18:14 +0300
> 
> First, semantic-symref-parse-tool-output, see whether the buffer 
> contents are different between invocations

They are different: the first one has a long run of binary nulls right
in the middle of it.

So this is unrelated to xref-find-references, it's some basic problem
with buffer memory management.  Could be the same problem that causes
this:

  http://lists.gnu.org/archive/html/emacs-devel/2016-04/msg00308.html

I will debug it, now that I have a reproducible recipe.

Thanks.