bug#62072: 29.0.60; tree-sitter interferes with Custom

[Eli Zaretskii]

> From: Po Lu <luangruo@yahoo.com>
> Cc: 62072@debbugs.gnu.org
> Date: Fri, 10 Mar 2023 20:19:29 +0800
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > Why is what?
> 
> I mean, why can't we wrap whatever in Custom is generating the warning
> inside `with-no-warnings' for now?

If you can suggest a patch which affects only the cases where these
options are evaluated as part of a large group, that's fine by me.
The problem is that we _do_ want the warning if the use customizes
specific options that require tree-sitter.  If Customize can
distinguish between those, I'm all for warning in one case, but not in
the other.