bug#43725: 28.0.50; Include feature/native-comp into master

[Eli Zaretskii]

> From: Andrea Corallo <akrl@sdf.org>
> Cc: larsi@gnus.org, monnier@iro.umontreal.ca, 43725@debbugs.gnu.org
> Date: Thu, 18 Feb 2021 21:22:54 +0000
> 
> > We can trust that if we indeed make the value explicitly, but if
> > there's at least a tiny chance to get a value that's too large, at
> > least an assertion would be a good idea.
> 
> That's sensible.  185121da69 and b1bab6e073 are introducing assertions
> for the highlighted cases and the other one I've spotted.

Thanks.