-conArgPats data_con arg_tys (PrefixCon ps) = map unLoc ps
-conArgPats data_con arg_tys (InfixCon p1 p2) = [unLoc p1, unLoc p2]
-conArgPats data_con arg_tys (RecCon (HsRecFields rpats _))
+conArgPats _data_con _arg_tys (PrefixCon ps) = map unLoc ps
+conArgPats _data_con _arg_tys (InfixCon p1 p2) = [unLoc p1, unLoc p2]
+conArgPats data_con arg_tys (RecCon (HsRecFields rpats _))