bug#48079: Temporary files while building after native-comp merge

[Eli Zaretskii]

> From: Andrea Corallo <akrl@sdf.org>
> Cc: Stefan Kangas <stefan@marxist.se>, 48079@debbugs.gnu.org
> Date: Thu, 29 Apr 2021 08:19:31 +0000
> 
> > Do you have some kind of auto-revert feature turned on?  If not, how
> > come magit-status even knows these files are created?
> 
> I believe he's referring to a new invocation of `magit-status' while
> compilation is happening.

Btw, what is the reason that these temporary *.elc files live longer
with the native compilation?  Does the native compilation need the
*.elc file for its processing?  If not, perhaps we could rename or
delete them earlier?