You can search for identifiers within the package.
in-package search v0.2.0
frama-c.kernel
Frama_c_kernel.Lexerhack
val add_identifier : (string -> unit) ref
val add_type : (string -> unit) ref
val push_context : (unit -> unit) ref
val pop_context : (unit -> unit) ref
val is_typedef : (unit -> bool) ref
val reset_typedef : (unit -> unit) ref
val set_typedef : (unit -> unit) ref