bug#62429: 30.0.50; Add jsx faces to typescript-ts-mode

[Eli Zaretskii]

> From: Yuan Fu <casouri@gmail.com>
> Date: Thu, 30 Mar 2023 01:11:48 -0700
> Cc: Stefan Monnier <monnier@iro.umontreal.ca>,
>  62429-done@debbugs.gnu.org,
>  theodor thornhill <theo@thornhill.no>
> 
> >>> OK, but then how will these JSX-specific faces fit into the overall
> >>> scheme of treesit-font-lock faces?  For example, in what level will
> >>> they be used, and how will users know what level to set to see these
> >>> faces in their buffers?
> >> 
> >> At level 3 for tsx-ts-mode, under the “jsx” feature. So they are enabled 
> >> by default. Though it’s true that it’s not immediately obvious what face 
> >> to customize. At the very least these faces appear in the customize group 
> >> of typescript. We can add something to the docstring of the major mode, 
> >> too.
> >> 
> >>> 
> >>> These are the downsides of mode-specific faces, and if we think it's
> >>> important enough to have them, we should resolve these issues when we
> >>> install such faces.
> > 
> > Then it is fine by me, as long as those measures you mentioned are
> > taken to make sure users know how to customize font-lock with these
> > faces.
> 
> Cool. I pushed the change.

Thanks, but please also tell in the doc string of the mode which
font-lock level uses these special faces.