bug#69709: `sort` interface improvement and universal ordering predicate

[Dmitry Gutov]

On 10/03/2024 18:55, Eli Zaretskii wrote:
> > Cc:69709@debbugs.gnu.org
> > From: Mattias Engdegård<mattias.engdegard@gmail.com>
> > Date: Sun, 10 Mar 2024 17:46:59 +0100
> >
> > 10 mars 2024 kl. 17.03 skrev Dmitry Gutov<dmitry@gutov.dev>:
> >
> > > That sounds more confusing, though (you drop the 'pred' argument, and the 
> > > function changes behavior, possibly becoming slower too).
> > Is it really surprising that behaviour changes if you remove a 
> > previously-mandatory argument from a call without reading the documentation? It 
> > seems unlikely that this would happen by accident.
> I think we should delay this discussion until we see the first draft
> of the code and the documentation to go with it.  As long as the issue
> is in Mattias's sights, I'm sure the result will be acceptable, to say
> the least.

I do think it's problematic, but it's not a deal-breaker, so if everyone 
else is fine with it, let's proceed.