bug#68244: hash-table improvements

[Eli Zaretskii]

> From: Mattias Engdegård <mattias.engdegard@gmail.com>
> Date: Tue, 20 Feb 2024 11:21:41 +0100
> Cc: Gerd Möllmann <gerd.moellmann@gmail.com>,
>  Dmitry Gutov <dmitry@gutov.dev>,
>  Eli Zaretskii <eliz@gnu.org>,
>  68244@debbugs.gnu.org,
>  Stefan Kangas <stefankangas@gmail.com>
> 
> > The scratch/obarray branch has now been updated. Now obarrayp detects 
> > obarray objects only.
> 
> Except for a few cosmetic changes that branch is what I will push to master 
> in a few days unless anyone objects. Getting the new type in place is the 
> important part here. (It's really a reform long overdue.)

How many different platforms and configurations tried to build and use
the branch?  For such a change, I think I'd like to see all the major
platforms be able to compile and run it, before we land it.

Thanks.