(defun help-fns--autoloaded-p (function file)
  "Return non-nil if FUNCTION has previously been autoloaded.
FILE is the file where FUNCTION was probably defined."
  (let* ((file (file-name-sans-extension (file-truename file)))
	 (load-hist load-history)
	 (target (cons t function))
	 found)
    (while (and load-hist (not found))
      (and (caar load-hist)
	   (equal (file-name-sans-extension (caar load-hist)) file)
	   (setq found (member target (cdar load-hist))))
      (setq load-hist (cdr load-hist)))
    found))