(if (find-nlx-info entry cont)
(let ((block (node-block exit)))
(aver (= (length (block-succ block)) 1))
(unlink-blocks block (first (block-succ block)))
(link-blocks block (component-tail (block-component block))))
(insert-nlx-entry-stub exit env))
(if (find-nlx-info entry cont)
(let ((block (node-block exit)))
(aver (= (length (block-succ block)) 1))
(unlink-blocks block (first (block-succ block)))
(link-blocks block (component-tail (block-component block))))
(insert-nlx-entry-stub exit env))