Stop using to/of conventions backwards

src/REPL.hs

@@ -33,10 +33,10 @@ repl env = runInputT defaultSettings (loop env)
           loop newEnv
 
 decodeResult :: T -> String
-decodeResult tc = case ofNumber tc of
+decodeResult tc = case toNumber tc of
   Right num -> show num
-  Left _ -> case ofString tc of
+  Left _ -> case toString tc of
     Right str -> "\"" ++ str ++ "\""
-    Left _ -> case ofList tc of
+    Left _ -> case toList tc of
       Right list -> "[" ++ intercalate ", " (map decodeResult list) ++ "]"
       Left _ -> ""