bug#71070: 30.0.50; c++-ts-mode namespace wrong fontification.

[Eli Zaretskii]

> Date: Sun, 19 May 2024 20:14:19 +0200
> From:  Ergus via "Bug reports for GNU Emacs,
>  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
> 
> 
> Following up the conversation in the develops mailing list I will report
> this issue still happening:
> 
> In c++-ts-mode, the namespaces are not fontified like in c++-mode
> 
> (i.e in std::string the `std` used to have font-lock-constant-face while
> `string` used to have font-lock-type-face).

Why do you think std should be in font-lock-constant-face?  The name
of a namespace is not a constant, it's an identifier.