pub fn force_unsanctioned_gil_on_control_plane()Expand description
Force one unsanctioned control-plane GIL acquisition and count it, for the
negative fitness test. Runs on a freshly ControlPlane-tagged thread and
routes through check_gil_site so the real gating is exercised; the
debug-build debug_assert panic is swallowed so the increment sticks (in
release builds there is no assert and the counter bumps directly).