#[unsafe(no_mangle)]pub extern "C" fn plg_rt_cut(m: *mut Machine, height: u64)Expand description
Cut: truncate the choice-point stack to height.
M4 will make this catch-frame aware (a cut must not discard a CATCH
barrier installed by catch/3); for M3 it is a plain truncate, matching
the absence of exception frames in the current runtime.