bug#55784: 29.0.50; No match 2 in highlight (2 font-lock-function-name-face prepend)

[Juri Linkov]

Some regression in the last few days broke font-lock,
and outputs to the *Messages* buffer a lot of such errors:

  Error during redisplay: (jit-lock-function 7571) signaled
 (error "No match 2 in highlight (2 font-lock-function-name-face prepend)")

Grepping for "font-lock-function-name-face prepend"
found this recent change in 1d4e903417:

  diff --git a/lisp/emacs-lisp/lisp-mode.el b/lisp/emacs-lisp/lisp-mode.el
  index 5b93f145e8..0492f25dc9 100644
  --- a/lisp/emacs-lisp/lisp-mode.el
  +++ b/lisp/emacs-lisp/lisp-mode.el
  @@ -430,7 +436,8 @@ lisp--match-confusable-symbol-character
                nil t))
           ;; Emacs Lisp autoload cookies.  Supports the slightly different
           ;; forms used by mh-e, calendar, etc.
  -        ("^;;;###\\([-a-z]*autoload\\)" 1 font-lock-warning-face prepend))
  +        (,lisp-mode-autoload-regexp (3 font-lock-warning-face prepend)
  +                                    (2 font-lock-function-name-face 
prepend)))
         "Subdued level highlighting for Emacs Lisp mode.")