ifaceExtRdrName (ExtPkg mod occ) = mkOrig mod occ
ifaceExtRdrName other = pprPanic "ParserCore.ifaceExtRdrName" (ppr other)
-add_forall tv (HsForAllTy (Just tvs) cxt t) = HsForAllTy (Just (tv:tvs)) cxt t
-add_forall tv t = HsForAllTy (Just [tv]) [] t
+add_forall tv (HsForAllTy exp tvs cxt t) = HsForAllTy exp (tv:tvs) cxt t
+add_forall tv t = HsForAllTy Explicit [tv] [] t
happyError :: P a
happyError s l = failP (show l ++ ": Parse error\n") (take 100 s) l