Function uidna_nameToASCII_UTF8 

pub unsafe extern "C" fn uidna_nameToASCII_UTF8(
    idna: *const UIDNA,
    name: PCSTR,
    length: i32,
    dest: PCSTR,
    capacity: i32,
    pinfo: *mut UIDNAInfo,
    perrorcode: *mut UErrorCode,
) -> i32