[add -de-alias to dump alias information when showing core
John Meacham <john@repetae.net>**20061012123532] hunk ./E/Show.hs 87
+        f LitCons { litName = s, litArgs = es, litType = t, litAliasFor = Just af } | dump FD.EAlias = do
+            es' <- mapM showBind es
+            se <- showE af
+            return $ foldl appCon (atom (tshow s <> char '@' <> parens (unparse se))) es' -- `inhabit` prettye t
hunk ./FlagDump.flags 47
+e-alias      show expanded aliases