[Bug preprocessor/104030] [12 Regression] -Wbidi-chars should not warn about UCNs

[mpolacek at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104030

--- Comment #5 from Marek Polacek <mpolacek at gcc dot gnu.org> ---
So maybe add -Wbidi-chars-ucn, which is off by default.