pe (TyApp (TyCon "SmallMutableArray#") [x,y]) = "mkSmallMutableArrayPrimTy " ++ ppType x
                                                    ++ " " ++ ppType y
ppT
ppType (TyApp (TyCon "SmallMutableArray#") [x,y]) = "mkSmallMutableArrayPrimTy " ++ ppType x
                                                    ++ " " ++ ppType y
ppType (TyApp (TyCon "SmallMutableArray#") [x,y]) = "mkSmallMutableArrayPrimTy " ++ ppType x
                                                    ++ " " ++ ppType y