Frama-C API - Lexerhack
 val add_identifier : (string -> unit) Stdlib.refval add_type : (string -> unit) Stdlib.refval push_context : (unit -> unit) Stdlib.refval pop_context : (unit -> unit) Stdlib.refval is_typedef : (unit -> bool) Stdlib.refval reset_typedef : (unit -> unit) Stdlib.refval set_typedef : (unit -> unit) Stdlib.ref