[Bug jit/123702] `gcc_jit_context_new_function` doesn't accept Unicode characters in function name

[coarse.d1rtxxx at gmail dot com via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123702

--- Comment #7 from Coarse Rosinflower <coarse.d1rtxxx at gmail dot com> ---
Even complete nonsense is allowed on my system, like `"\xFF\x80\xC0"`, so I
don't think “character” is the right word here.