`(;; Erm. Yeah. There aren't a lot of things that make sense
;; for an initial element for (ARRAY NIL). -- CSR, 2002-03-07
(nil '#:mu 0 ,sb!vm:simple-array-nil-widetag)
- (base-char ,(code-char 0) 8 ,sb!vm:simple-string-widetag
+ (base-char ,(code-char 0) 8 ,sb!vm:simple-base-string-widetag
;; (SIMPLE-STRINGs are stored with an extra trailing
;; #\NULL for convenience in calling out to C.)
:n-pad-elements 1)