bug#70641: 29.1.90; default-indent-new-line cannot put comment delimiter on c-ts-mode

[김희석]

On c-mode, deurn default-indent-new-line auto-indent and
put delimitors on multiple lines of comment.

For example, if there is comments like this:
    /**
     * Comment like
     * this []
     */
When I press M-j (default-indent-new-line) on the point [], on
c-mode, emacs indent and put comment delimiter automatically
like this:
    /**
     * Comment like
     * this
     * []
     */
However on c-ts-mode, it does not works. It indents well, but
could not find or put the comment delimiter on new line when
I press M-j.
    /**
     * Comment like
     * this
     []
     */
On c-ts-mode, I found that the default value of variable comment-multi-line
is nil, which was t on c-mode, and above behavior is happend when I set
this value to t. When it was nil, comment become like this:
    /**
     * Comment like
     * this *//*
     []
     */
Which is intended behavior.

Also, on c-mode, when I write multiple lines of comment with first line
of comment is "/**", (like above examples) that block is set to have
the same font-lock face as string to make it easier to read, but
in c-ts-mode that behavior doesn't happen and they all have
the same face.

Thank you for reading. Please let me know if you need any further
information.


In GNU Emacs 29.1.90 (build 1, x86_64-apple-darwin21.6.0, NS
appkit-2113.60 Version 12.7.2 (Build 21G1974)) of 2023-12-16 built on
Mac-1702653425255.local
Repository revision: 06ec20fabf8f01ba706b4f19f3622f4edca79417
Repository branch: HEAD
Windowing system distributor 'Apple', version 10.3.2113
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