From 695cb7fecc511e51ceded125dbba276a89a4d86b Mon Sep 17 00:00:00 2001
From: Eric Seidel <gridaphobe@gmail.com>
Date: Mon, 11 Jan 2016 14:57:57 -0800
Subject: deal with un-wiring of IP class

(cherry picked from commit 17388b0f0029d969d79353be7737eb01c7b8dc5f)
---
 haddock-api/src/Haddock/Convert.hs | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/haddock-api/src/Haddock/Convert.hs b/haddock-api/src/Haddock/Convert.hs
index 38271a04..b6dd06e9 100644
--- a/haddock-api/src/Haddock/Convert.hs
+++ b/haddock-api/src/Haddock/Convert.hs
@@ -34,8 +34,8 @@ import TyCon
 import Type
 import TyCoRep
 import TysPrim ( alphaTyVars )
-import TysWiredIn ( listTyConName, ipTyCon )
-import PrelNames ( hasKey, eqTyConKey )
+import TysWiredIn ( listTyConName )
+import PrelNames ( hasKey, eqTyConKey, ipClassKey )
 import Unique ( getUnique )
 import Util ( filterByList, filterOut )
 import Var
@@ -372,7 +372,7 @@ synifyType _ (TyConApp tc tys)
   | getName tc == listTyConName, [ty] <- tys =
      noLoc $ HsListTy (synifyType WithinType ty)
   -- ditto for implicit parameter tycons
-  | tc == ipTyCon
+  | tc `hasKey` ipClassKey
   , [name, ty] <- tys
   , Just x <- isStrLitTy name
   = noLoc $ HsIParamTy (HsIPName x) (synifyType WithinType ty)
-- 
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