Don't display the splash screen when no frame was created. (Fixes tty resume.)

* lisp/server.el (server-process-filter): Don't display the splash screen
  when no frame was created.

git-archimport-id: lorentey@elte.hu--2004/emacs--multi-tty--0--patch-479

lisp/server.el

@@ -752,12 +752,13 @@ The following commands are accepted by the client:
 		(setq buffers (server-visit-files files client nowait))
 		(run-hooks 'post-command-hook))
 
-	      (with-selected-frame frame
-		(switch-to-buffer (or (car buffers)
-				      (get-buffer-create "*scratch*")))
-		(unless inhibit-splash-screen
-		  (display-splash-screen))
-		(display-startup-echo-area-message))
+	      (when frame
+		(with-selected-frame frame
+		  (switch-to-buffer (or (car buffers)
+					(get-buffer-create "*scratch*")))
+		  (unless inhibit-splash-screen
+		    (display-splash-screen))
+		  (display-startup-echo-area-message)))
 
 	      ;; Delete the client if necessary.
 	      (cond