X-Git-Url: http://git.megacz.com/?p=ghc-hetmet.git;a=blobdiff_plain;f=compiler%2Ftypes%2FGenerics.lhs;h=fed023ed52a5359a29c8dc4135a80470d0d33960;hp=c0fb4fc097340642ed9271926eb8671afcf85f83;hb=703ca1542c8e0983cc9d8eebce6e9f3dd3fd71e2;hpb=0adb306aceaea7c10c67ff90e559eeea3ba5f19a

diff --git a/compiler/types/Generics.lhs b/compiler/types/Generics.lhs
index c0fb4fc..fed023e 100644
--- a/compiler/types/Generics.lhs
+++ b/compiler/types/Generics.lhs
@@ -18,13 +18,11 @@ module Generics ( canDoGenerics, mkTyConGenericBinds,
 
 import HsSyn
 import Type
-import TcHsSyn
 import TcType
 import DataCon
 
 import TyCon
 import Name
-import OccName
 import RdrName
 import BasicTypes
 import Var
@@ -398,7 +396,7 @@ mkGenericNames tycon
   where
     tc_name  = tyConName tycon
     tc_occ   = nameOccName tc_name
-    tc_mod   = nameModule tc_name
+    tc_mod   = ASSERT( isExternalName tc_name ) nameModule tc_name
     from_RDR = mkOrig tc_mod (mkGenOcc1 tc_occ)
     to_RDR   = mkOrig tc_mod (mkGenOcc2 tc_occ)
 \end{code}