Ast_helper.Constval char : char -> Parsetree.constantval string : 
  ?quotation_delimiter:string ->
  ?loc:Location.t ->
  string ->
  Parsetree.constantval integer : ?suffix:char -> string -> Parsetree.constantval int : ?suffix:char -> int -> Parsetree.constantval int32 : ?suffix:char -> int32 -> Parsetree.constantval int64 : ?suffix:char -> int64 -> Parsetree.constantval nativeint : ?suffix:char -> nativeint -> Parsetree.constantval float : ?suffix:char -> string -> Parsetree.constant