[cells-devel] Handling not-to-be'd kids and how to do an input slot for kids

[Ken Tilton]

One hallmark of a good fix is when it makes comments and kludges go 
away. Just spotted this in Cello:

(defmethod not-to-be :after ((self ogl-node))
   (bwhen (dl (slot-value self 'dsp-list)) ;; don't trigger lazy cell
     (gl-delete-lists dl 1)))

:)

kt