bug#72223: 31.0.50; c-ts-mode-indent-style custom function should accept a `mode`(c/c++) parameter

[Eli Zaretskii]

> Date: Sat, 20 Jul 2024 22:10:06 +0800
> From:  Meow King via "Bug reports for GNU Emacs,
>  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
> 
> 
> Currently, the `c-ts-mode--get-indent-style` function: 
> ```
> (defun c-ts-mode--get-indent-style (mode)
>   "Helper function to set indentation style.
> MODE is either `c' or `cpp'."
>   (let ((style
>          (if (functionp c-ts-mode-indent-style)
>              (funcall c-ts-mode-indent-style)
>            (alist-get c-ts-mode-indent-style (c-ts-mode--indent-styles 
> mode)))))
>     `((,mode ,@style))))
> ```
> We can use `c-ts-mode-indent-style` to customize our indentation.
> However, the function doesn't accept a `mode` parameter, without which
> we cannot determine the current customizing indentation style of what
> language (c/c++).

Isn't the mode available as the value of major-mode?