X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=compiler%2Frename%2FRnHsSyn.lhs;h=8774b40625cbe02d8a376208463dde2168a4adf9;hb=1ee08bbe86b03ba74a9be309a84602b34e41cbb4;hp=53f04e2ba2b5e60d69268b4dfd27619453df4027;hpb=190f24892156953d73b55401d0467a6f1a88ce5d;p=ghc-hetmet.git

diff --git a/compiler/rename/RnHsSyn.lhs b/compiler/rename/RnHsSyn.lhs
index 53f04e2..8774b40 100644
--- a/compiler/rename/RnHsSyn.lhs
+++ b/compiler/rename/RnHsSyn.lhs
@@ -87,6 +87,8 @@ extractHsCtxtTyNames (L _ ctxt)
 -- so don't mention the IP names
 extractHsPredTyNames (HsClassP cls tys)
   = unitNameSet cls `unionNameSets` extractHsTyNames_s tys
+extractHsPredTyNames (HsEqualP ty1 ty2)
+  = extractHsTyNames ty1 `unionNameSets` extractHsTyNames ty2
 extractHsPredTyNames (HsIParam n ty)
   = extractHsTyNames ty
 \end{code}