[Bug preprocessor/106426] UTF-8 character literals do not have unsigned type in the preprocessor in -fchar8_t mode

[tom at honermann dot net via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106426

--- Comment #1 from Tom Honermann <tom at honermann dot net> ---
A patch for this issue was submitted to the gcc-patches mailing list with the
patch series available at
https://gcc.gnu.org/pipermail/gcc-patches/2022-August/599240.html.