(pure nil :type (member t nil 0))
;; Number of raw words at the end.
;; This slot is known to the C runtime support code.
- (n-untagged-slots 0 :type index))
+ (n-untagged-slots 0 :type index)
+ ;; Definition location
+ (source-location nil))
(def!method print-object ((layout layout) stream)
(print-unreadable-object (layout stream :type t :identity t)