5 files changed, 11 insertions, 5 deletions
diff --git a/haddock-api/src/Haddock/Backends/Hoogle.hs b/haddock-api/src/Haddock/Backends/Hoogle.hs
index 9a15c7b3..1c3dea7c 100644
--- a/haddock-api/src/Haddock/Backends/Hoogle.hs
+++ b/haddock-api/src/Haddock/Backends/Hoogle.hs
@@ -1,3 +1,4 @@
+{-# LANGUAGE FlexibleContexts #-}
 -----------------------------------------------------------------------------
 -- |
 -- Module      :  Haddock.Backends.Hoogle
@@ -84,7 +85,8 @@ dropHsDocTy = f
         f (HsDocTy a _) = f $ unL a
         f x = x
 
-outHsType :: OutputableBndr a => DynFlags -> HsType a -> String
+outHsType :: (OutputableBndr a, OutputableBndr (NameOrRdrName a))
+          => DynFlags -> HsType a -> String
 outHsType dflags = out dflags . dropHsDocTy
 
 
diff --git a/haddock-api/src/Haddock/Backends/Xhtml.hs b/haddock-api/src/Haddock/Backends/Xhtml.hs
index f7284062..8e9fd7ae 100644
--- a/haddock-api/src/Haddock/Backends/Xhtml.hs
+++ b/haddock-api/src/Haddock/Backends/Xhtml.hs
@@ -47,7 +47,7 @@ import Data.Function
 import Data.Ord              ( comparing )
 
 import DynFlags (Language(..))
-import GHC hiding ( NoLink, moduleInfo )
+import GHC hiding ( NoLink, moduleInfo,FunctionFixity(..) )
 import Name
 import Module
 
diff --git a/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs b/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs
index 2bd8c4ad..e6dfce67 100644
--- a/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs
+++ b/haddock-api/src/Haddock/Backends/Xhtml/Decl.hs
@@ -34,7 +34,7 @@ import qualified Data.Map as Map
 import           Data.Maybe
 import           Text.XHtml hiding     ( name, title, p, quote )
 
-import GHC
+import GHC hiding (FunctionFixity(..))
 import GHC.Exts
 import Name
 import BooleanFormula
diff --git a/haddock-api/src/Haddock/Backends/Xhtml/Names.hs b/haddock-api/src/Haddock/Backends/Xhtml/Names.hs
index 5492178b..0f4dd51a 100644
--- a/haddock-api/src/Haddock/Backends/Xhtml/Names.hs
+++ b/haddock-api/src/Haddock/Backends/Xhtml/Names.hs
@@ -26,7 +26,7 @@ import Text.XHtml hiding ( name, title, p, quote )
 import qualified Data.Map as M
 import qualified Data.List as List
 
-import GHC
+import GHC hiding (FunctionFixity(..))
 import Name
 import RdrName
 import FastString (unpackFS)
diff --git a/haddock-api/src/Haddock/Types.hs b/haddock-api/src/Haddock/Types.hs
index eacf4473..1a7a0b6f 100644
--- a/haddock-api/src/Haddock/Types.hs
+++ b/haddock-api/src/Haddock/Types.hs
@@ -1,4 +1,7 @@
 {-# LANGUAGE DeriveDataTypeable, DeriveFunctor, DeriveFoldable, DeriveTraversable, StandaloneDeriving, TypeFamilies, RecordWildCards #-}
+{-# LANGUAGE FlexibleContexts #-}
+{-# LANGUAGE UndecidableInstances #-} -- Note [Pass sensitive types]
+                                      -- in module GHC.PlaceHolder
 {-# OPTIONS_GHC -fno-warn-orphans #-}
 -----------------------------------------------------------------------------
 -- |
@@ -341,7 +344,8 @@ data InstType name
   | TypeInst  (Maybe (HsType name)) -- ^ Body (right-hand side)
   | DataInst (TyClDecl name)        -- ^ Data constructors
 
-instance OutputableBndr a => Outputable (InstType a) where
+instance (OutputableBndr a, OutputableBndr (NameOrRdrName a))
+         => Outputable (InstType a) where
   ppr (ClassInst { .. }) = text "ClassInst"
       <+> ppr clsiCtx
       <+> ppr clsiTyVars