-cmp_sig :: RenamedSig -> RenamedSig -> Ordering
-cmp_sig (Sig n1 _ _) (Sig n2 _ _) = n1 `compare` n2
-cmp_sig (InlineSig n1 _ _) (InlineSig n2 _ _) = n1 `compare` n2
-cmp_sig (NoInlineSig n1 _ _) (NoInlineSig n2 _ _) = n1 `compare` n2
-cmp_sig (SpecInstSig ty1 _) (SpecInstSig ty2 _) = cmpHsType compare ty1 ty2
-cmp_sig (SpecSig n1 ty1 _) (SpecSig n2 ty2 _)
- = -- may have many specialisations for one value;
- -- but not ones that are exactly the same...
- thenCmp (n1 `compare` n2) (cmpHsType compare ty1 ty2)
-
-cmp_sig other_1 other_2 -- Tags *must* be different
- | (sig_tag other_1) _LT_ (sig_tag other_2) = LT
- | otherwise = GT
-
-sig_tag (Sig n1 _ _) = (ILIT(1) :: FAST_INT)
-sig_tag (SpecSig n1 _ _) = ILIT(2)
-sig_tag (InlineSig n1 _ _) = ILIT(3)
-sig_tag (NoInlineSig n1 _ _) = ILIT(4)
-sig_tag (SpecInstSig _ _) = ILIT(5)
-sig_tag (FixSig _) = ILIT(6)
-sig_tag _ = panic# "tag(RnBinds)"
+renameIE :: (RdrName -> RnMS Name) -> IE RdrName -> RnMS (IE Name, FreeVars)
+renameIE lookup_occ_nm (IEVar v)
+ = lookup_occ_nm v `thenRn` \ new_v ->
+ returnRn (IEVar new_v, unitFV new_v)
+
+renameIE lookup_occ_nm (IEThingAbs v)
+ = lookup_occ_nm v `thenRn` \ new_v ->
+ returnRn (IEThingAbs new_v, unitFV new_v)
+
+renameIE lookup_occ_nm (IEThingAll v)
+ = lookup_occ_nm v `thenRn` \ new_v ->
+ returnRn (IEThingAll new_v, unitFV new_v)
+
+renameIE lookup_occ_nm (IEThingWith v vs)
+ = lookup_occ_nm v `thenRn` \ new_v ->
+ mapRn lookup_occ_nm vs `thenRn` \ new_vs ->
+ returnRn (IEThingWith new_v new_vs, plusFVs [ unitFV x | x <- new_v:new_vs ])
+
+renameIE lookup_occ_nm (IEModuleContents m)
+ = returnRn (IEModuleContents m, emptyFVs)