Function ucol_getDisplayName 

pub unsafe fn ucol_getDisplayName<P0, P1>(
    objloc: P0,
    disploc: P1,
    result: *mut u16,
    resultlength: i32,
    status: *mut UErrorCode,
) -> i32
where
    P0: Param<PCSTR>,
    P1: Param<PCSTR>,