Function CredRenameW 

pub unsafe fn CredRenameW<P0, P1>(
    oldtargetname: P0,
    newtargetname: P1,
    type: CRED_TYPE,
    flags: Option<u32>,
) -> Result<()>
where
    P0: Param<PCWSTR>,
    P1: Param<PCWSTR>,