Function rustc_mir_transform::elaborate_drops::remove_dead_unwinds

fn remove_dead_unwinds<'tcx>(
    tcx: TyCtxt<'tcx>,
    body: &mut Body<'tcx>,
    env: &MoveDataParamEnv<'tcx>,
    und: &UnDerefer<'tcx>
)

Removes unwind edges which are known to be unreachable, because they are in drop terminators that can’t drop anything.