Function uidna_labelToASCII_UTF8
pub unsafe fn uidna_labelToASCII_UTF8<P1, P3>(
idna: *const UIDNA,
label: P1,
length: i32,
dest: P3,
capacity: i32,
pinfo: *mut UIDNAInfo,
perrorcode: *mut UErrorCode,
) -> i32where
P1: Param<PCSTR>,
P3: Param<PCSTR>,