Less verbose debug print

diff --git a/compiler/typecheck/TcSMonad.lhs b/compiler/typecheck/TcSMonad.lhs
index 1e99876..36c46b3 100644 (file)
--- a/compiler/typecheck/TcSMonad.lhs
+++ b/compiler/typecheck/TcSMonad.lhs
@@ -947,7 +947,7 @@ matchClass clas tys
                        ; traceTcS "matchClass success"
                                   (vcat [text "dict" <+> ppr pred, 
                                          text "witness" <+> ppr dfun_id
-                                           <+> ppr (idType dfun_id), ppr instEnvs ])
+                                           <+> ppr (idType dfun_id) ])
                                  -- Record that this dfun is needed
                         ; return $ MatchInstSingle (dfun_id, inst_tys)
                         } ;