/// @param DomNode The domtree node for the block.
/// @param Kill Index in block where LI is killed. If the value is
/// live-through, set Kill = SLotIndex() and also call
/// setLiveOutValue(MBB, 0).
/// @param DomNode The domtree node for the block.
/// @param Kill Index in block where LI is killed. If the value is
/// live-through, set Kill = SLotIndex() and also call
/// setLiveOutValue(MBB, 0).