bug#59831: 29.0.60; typescript-ts-mode: Variables, properties & fields are often not fontified

[Eli Zaretskii]

> Date: Wed, 14 Dec 2022 19:46:06 +0100
> From: Jostein Kjønigsen <jostein@secure.kjonigsen.net>
> Cc: 59831@debbugs.gnu.org
> 
> If Yuan is busy with stuff, could someone else help get this installed 
> into the emacs-29 branch?

Done.

Please in the future try following more closely our conventions for
writing commit log messages.  (See the minor corrections I made in
this commit.)

Thanks.