Function Perl_load_charnames 

pub unsafe fn Perl_load_charnames(
    my_perl: *mut PerlInterpreter,
    char_name: *mut SV,
    context: *const c_char,
    context_len: STRLEN,
    error_msg: *mut *const c_char,
) -> *mut HV

thx shim for crate::Perl_load_charnames.