[remove some warnings, ad Show instance for Expression
John Meacham <john@repetae.net>**20070530010836] hunk ./C/Generate.hs 52
+    character,
hunk ./C/Generate.hs 58
-    voidType
+    voidType,
+    voidStarType
hunk ./C/Generate.hs 221
-tif :: Expression -> Expression -> Expression -> Expression
-tif x y z = expDC (draw x <+> char '?' <+> draw y <+> char ':' <+> draw z)
hunk ./C/Generate.hs 411
-    functionAnnotations :: String,
hunk ./C/Generate.hs 422
-function n t as o s = F "" n t as o s
+function n t as o s = F n t as o s
hunk ./C/Generate.hs 552
+instance Show Expression where
+    show e = renderG e