;; If a local TN, the block relative number for this TN. Global TNs
;; whose liveness changes within a block are also assigned a local
;; number during the conflicts analysis of that block. If the TN has
- ;; no local number within the block, then this is Nil.
+ ;; no local number within the block, then this is NIL.
(local-number nil :type (or local-tn-number null))
;; If this object is a local TN, this slot is a bit-vector with 1
;; for the local-number of every TN that we conflict with.