Slightly improve -ddump-hi-diffs output

[ghc-hetmet.git] / compiler / iface / MkIface.lhs

diff --git a/compiler/iface/MkIface.lhs b/compiler/iface/MkIface.lhs
index a9b9f03..0d4d163 100644 (file)
--- a/compiler/iface/MkIface.lhs
+++ b/compiler/iface/MkIface.lhs
@@ -332,7 +332,6 @@ mkIface hsc_env maybe_old_iface
      deliberatelyOmitted x = panic ("Deliberately omitted: " ++ x)
      ifFamInstTcName = ifaceTyConName . ifFamInstTyCon
 
-                                             
 -----------------------------
 writeIfaceFile :: DynFlags -> ModLocation -> ModIface -> IO ()
 writeIfaceFile dflags location new_iface
@@ -539,7 +538,7 @@ addVersionInfo ver_fn (Just old_iface@(ModIface {
        where
          occ = ifName new_decl
          why = case lookupOccEnv eq_env occ of
-                   Just (EqBut names) -> sep [ppr occ <> colon, ptext SLIT("Free vars (only) changed:"),
+                   Just (EqBut names) -> sep [ppr occ <> colon, ptext SLIT("Free vars (only) changed:") <> ppr names,
                                              nest 2 (braces (fsep (map ppr (occSetElts 
                                                (occs `intersectOccSet` changed_occs)))))]
                            where occs = mkOccSet (map nameOccName (nameSetToList names))