[Fix Data.IORef to the new IO representation
Einar Karttunen <ekarttun@cs.helsinki.fi>**20060226104857] hunk ./lib/Data/IORef.hs 22
-newIORef v = IO $ \world -> case newRef__ v world of
+newIORef v = IO $ \_ world -> case newRef__ v world of
hunk ./lib/Data/IORef.hs 24
-readIORef r = IO $ \world -> case readRef__ r world of
+readIORef r = IO $ \_ world -> case readRef__ r world of
hunk ./lib/Data/IORef.hs 26
-writeIORef r v = IO $ \world -> case writeRef__ r v world of
+writeIORef r v = IO $ \_ world -> case writeRef__ r v world of