bug#48264: [PATCH 2/2] Add compile-time check that BVAR is used correctly

[Eli Zaretskii]

> From: Stefan Monnier <monnier@iro.umontreal.ca>
> Cc: Eli Zaretskii <eliz@gnu.org>,  48264@debbugs.gnu.org
> Date: Sun, 09 May 2021 14:09:43 -0400
> 
> > BVAR should only be used for permanent-local buffer variables, so
> 
> BTW, I find this term slightly problematic: "permanent-local" already
> has a slightly different meaning for normal variables.  Maybe we should
> call them "really-permanent-local" or "always buffer-local" or
> "buffer-local-only"?

I prefer "always buffer-local", as this is what we used until now (see
buffer.c).