wayland: Cancel display read before abortOnFatalError

Calling wl_display_cancel_read immediately ensures that other readers
waiting on us will have a chance to wake up and discover the error in a
timely manner.

glfw/wl_window.c

@@ -782,8 +782,8 @@ handleEvents(monotonic_t timeout)
     errno = 0;
     if (wl_display_flush(display) < 0 && errno != EAGAIN)
     {
-        abortOnFatalError(errno);
         wl_display_cancel_read(display);
+        abortOnFatalError(errno);
         return;
     }