bug#61691: (wrong-type-argument stringp nil) error when indenting some C code in c-ts-mode

["Daniel Martín via Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>]

Version: 29.1

Eli Zaretskii <eliz@gnu.org> writes:

>> Date: Wed, 22 Feb 2023 00:23:37 +0100
>> From:  Daniel Martín via "Bug reports for GNU Emacs,
>>  the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
>> 
>> Given the following code in c-ts-mode:
>> 
>> int
>> foo ()
>> {
>>   int c;
>>   if (!CHAR_VALID_P (c))
>>     /* This is a comment.  */
>>     c = 'a';
>> 
>>   return c;
>> }
>> 
>> If point is in line "c = 'a'" and you press TAB, a (wrong-type-argument
>> stringp nil) error is thrown.
>
> With today's emacs-29 branch, I cannot reproduce this.  Was the
> problem solved meanwhile?

I cannot reproduce the issue anymore in Emacs 29, so I'm closing the bug
report.