[improve show instance for MetaVar
John Meacham <john@repetae.net>**20090226060135
 Ignore-this: 6bc88dc42eb137eec804709bc9428661
] hunk ./FrontEnd/Representation.hs 63
-             deriving(Eq,Ord,Show)
+             deriving(Eq,Ord)
hunk ./FrontEnd/Representation.hs 78
-             deriving(Show)
hunk ./FrontEnd/Representation.hs 134
-instance Show (IORef a) where
-    showsPrec _ _ = ("<IORef>" ++)
hunk ./FrontEnd/Representation.hs 329
+instance Show MetaVarType where
+    show mv = pprint mv
+
+instance Show MetaVar where
+    show mv = pprint mv
+