bug#60983: 29.0.60; Tree-sitter user-level control

[Theodor Thornhill via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>]

Eli Zaretskii <eliz@gnu.org> writes:

>> From: Theodor Thornhill <theo@thornhill.no>
>> Cc: 60983@debbugs.gnu.org
>> Date: Sat, 28 Jan 2023 14:12:52 +0100
>> 
>> > Yuan or Theo, would one of you please make the change of making
>> > treesit-font-lock-level a defcustom, with a proper :set functions to
>> > avoid the need to revisit the file?  My hands are too full ATM, and
>> > this issue is basically the only one which prevents me from updating
>> > the Emacs user manual with the tree-sitter info, which in turn is the
>> > only issue that blocks the move to releasing the 29.0.90 pretest
>> > tarball.
>> >
>> > TIA
>> 
>> 
>> Are you okay with these patches, Eli? If so, then I can clean them up a
>> little and install on emacs-29.  In both cases using
>> (customize-set-variable 'the-variable val) will take effect in the
>> buffer without having to reload anything.
>
> LGTM, please install, and thanks.
>
>> Let me know if there are any other changes needed.  I'll have some time
>> this evening to do some hacking if needed :)
>
> Will do.

Installed.

Theo