pub(crate) fn generate_constraints<'cx, 'tcx>(
    infcx: &InferCtxt<'cx, 'tcx>,
    liveness_constraints: &mut LivenessValues<RegionVid>,
    all_facts: &mut Option<AllFacts>,
    location_table: &LocationTable,
    body: &Body<'tcx>,
    borrow_set: &BorrowSet<'tcx>
)