Stdune.ExnExceptions
exception Code_error of Sexp.tAn programming error, that should be reported upstream. The error message shouldn't try to be developer friendly rather than user friendly.
exception Loc_error of Loc.t * stringval code_error : string -> (string * Sexp.t) list -> _val raise_with_backtrace : exn -> Printexc.raw_backtrace -> _