fix weird IsReserved issue

lib/Quox/Lexer.idr

@@ -4,6 +4,7 @@ import Quox.CharExtra
 import Quox.Name
 import Data.String.Extra
 import Data.SortedMap
+import public Data.String -- for singleton to reduce in IsReserved
 import public Data.List.Elem
 import public Text.Lexer
 import public Text.Lexer.Tokenizer

lib/Quox/Parser.idr

@@ -7,12 +7,6 @@ import Data.Fin
 import Data.Vect
 import public Text.Parser
 
-
--- [fixme] without this import idris fails to solve the
--- IsReserved arguments, which, ??????????????????????
-import Derive.Prelude
-%hide TT.Name
-
 %default total