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

[Andrea Corallo]

Andrea Corallo via "Bug reports for GNU Emacs, the Swiss army knife of
text editors" <bug-gnu-emacs@gnu.org> writes:

> Lars Ingebrigtsen <larsi@gnus.org> writes:
>
>> Andrea Corallo <akrl@sdf.org> writes:
>>
>>> Are these warnings related to compiler specific files or related to
>>> other compilation units?
>>
>> I'm not quite sure I understand the question, but it's things like:
>>
>>  ELC+ELN   gnus/message.elc
>>
>> In end of data:
>> message.el:8873:1: Warning: the function ‘safe-date-to-time’ might not be
>>     defined at runtime.
>>
>> And:
>>
>> ;;;###autoload
>> (defun safe-date-to-time (date)
>>   ...)
>>
>> I don't see any patterns to which ;;;###autoloads are "missing" in
>> native-comp.
>
> Interesting, I've completely missed this :/
>
> Gonna look into it
>
>   Andrea

Hi Lars,

quite happy to mention that dcfd367d28 should fix the issue of the
spurious warnings.  A little less proud of the fact that took me good
part of the day to track this stupid bug down :/

Anyway I've build the branch with and without --with-nativecomp and
(after some clean-up on the vanilla build) I count the same number of
warnings now on both builds.

  Andrea