Fontify special forms and macros the same

* lisp/emacs-lisp/lisp-mode.el (lisp--el-match-keyword): Handle
special forms and macros the same way (bug#43265).  This makes
things like (setq a '(if a b)) be fontified correctly (i.e., not
fontified as a keyword).

lisp/emacs-lisp/lisp-mode.el

@@ -257,10 +257,9 @@
               (concat "(\\(" lisp-mode-symbol-regexp "\\)\\_>"))
             limit t)
       (let ((sym (intern-soft (match-string 1))))
-	(when (or (special-form-p sym)
-		  (and (macrop sym)
-                       (not (get sym 'no-font-lock-keyword))
-                       (lisp--el-funcall-position-p (match-beginning 0))))
+	(when (and (or (special-form-p sym) (macrop sym))
+                   (not (get sym 'no-font-lock-keyword))
+                   (lisp--el-funcall-position-p (match-beginning 0)))
 	  (throw 'found t))))))
 
 (defmacro let-when-compile (bindings &rest body)

test/lisp/progmodes/elisp-mode-tests.el

@@ -871,7 +871,6 @@ to (xref-elisp-test-descr-to-target xref)."
               'font-lock-keyword-face)))
 
 (ert-deftest test-elisp-font-keywords-3 ()
-  :expected-result :failed ; FIXME bug#43265
   (should (eq (test--font '(setq a '(if when zot))
                           "(\\(if\\)")
               nil)))