Remove module lookup, since it can never be a module

Author: fendor

src/Haskell/Ide/Engine/Plugin/HieExtras.hs

@@ -550,7 +550,7 @@ getModule df n = do
 -- Sum Types can also be searched.
 findTypeDef :: Uri -> Position -> IdeDeferM (IdeResult [Location])
 findTypeDef uri pos = pluginGetFile "findTypeDef: " uri $ \file ->
-  withCachedInfo
+  ifCachedInfo
     file
     (IdeResultOk []) -- Default result
     (\info -> do
@@ -577,7 +577,7 @@ findTypeDef uri pos = pluginGetFile "findTypeDef: " uri $ \file ->
                 case nameSrcSpan (getName tyCon) of
                   UnhelpfulSpan _ -> throwError ()
                   realSpan        -> return realSpan
-                  
+
           liftMaybe :: Monad m => Maybe a -> ExceptT () m a
           liftMaybe val = liftEither $ case val of
             Nothing -> Left ()