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-rw-r--r--compiler/GHC/Tc/Utils/Monad.hs2
1 files changed, 1 insertions, 1 deletions
diff --git a/compiler/GHC/Tc/Utils/Monad.hs b/compiler/GHC/Tc/Utils/Monad.hs
index efe30fca02..b7eef860bb 100644
--- a/compiler/GHC/Tc/Utils/Monad.hs
+++ b/compiler/GHC/Tc/Utils/Monad.hs
@@ -1137,7 +1137,7 @@ reportDiagnostics = mapM_ reportDiagnostic
reportDiagnostic :: MsgEnvelope TcRnMessage -> TcRn ()
reportDiagnostic msg
- = do { traceTc "Adding diagnostic:" (pprLocMsgEnvelope msg) ;
+ = do { traceTc "Adding diagnostic:" (pprLocMsgEnvelope undefined msg) ;
errs_var <- getErrsVar ;
msgs <- readTcRef errs_var ;
writeTcRef errs_var (msg `addMessage` msgs) }