* lisp/emacs-lisp/bytecomp.el: Check existence of f in #'f.

(byte-compile-callargs-warn): Use `push'.
(byte-compile-arglist-warn): Ignore higher-order "calls".
(byte-compile-file-form-autoload): Use `pcase'.
(byte-compile-function-form): If quoting a symbol, check that it exists.

lisp/emacs-lisp/byte-run.el

@@ -83,7 +83,6 @@ The return value of this function is not used."
                    (list 'quote f) (list 'quote new-name) (list 'quote when))))
    (list 'compiler-macro
          #'(lambda (f args compiler-function)
-             ;; FIXME: Make it possible to just reuse `args'.
              `(eval-and-compile
                 (put ',f 'compiler-macro
                      ,(if (eq (car-safe compiler-function) 'lambda)