Goal:
    b : byte
  ============================
   (noConfusion_byte_obligation_1 b b
      (noConfusion_byte_obligation_2 b b eq_refl) = eq_refl)


DEBUG:Going to execute:
intros; CoreTactics.destruct_all_rec_calls; simpl in *;
            try progress (CoreTactics.reverse; simplify_equalities)