bug#64019: 29.0.91; Fix some tree-sitter :match regexps

[Eli Zaretskii]

> Cc: 64019@debbugs.gnu.org
> Date: Mon, 12 Jun 2023 16:10:31 +0100
> From:  Basil Contovounesios via "Bug reports for GNU Emacs,
>  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
> 
> Mattias Engdegård [2023-06-12 16:48 +0200] wrote:
> 
> >> --- a/lisp/progmodes/c-ts-mode.el
> >> +++ b/lisp/progmodes/c-ts-mode.el
> >> @@ -1319,7 +1319,7 @@ c-ts-mode--c-or-c++-regexp
> >>                "\\|" id "::"
> >>                "\\|" id ws-maybe "=\\)"
> >>                "\\|" "\\(?:inline" ws "\\)?namespace"
> >> -              "\\(:?" ws "\\(?:" id "::\\)*" id "\\)?" ws-maybe "{"
> >> +              "\\(?:" ws "\\(?:" id "::\\)*" id "\\)?" ws-maybe "{"
> >
> > If this one is wrong, then so is the regexp in cc-mode.el from this one was 
> > copied, right?
> 
> Right, but I was going to suggest fixing that on master rather than
> emacs-29, since it's been with us longer.

I'd rather we fixed all non-trivial stuff like this on master.  We do
want the pretest end at some point this year, don't we?