[fix bug where second argument of shift primitives wasn't being unboxed properly
John Meacham <john@repetae.net>**20080307045929] hunk ./data/PrimitiveOperators-in.hs 71
-op_aIa op ct cn t = ELam tvra' (ELam tvrb' (unbox' (EVar tvra') cn tvra (unbox' (EVar tvrb') cn tvrb wtd))) where
+op_aIa op ct cn t = ELam tvra' (ELam tvrb' (unbox' (EVar tvra') cn tvra (unbox' (EVar tvrb') dc_Int tvrb wtd))) where