Replace theme() with drupal_render() in theme.inc

Only one theme() cal has been found.

Since there is only one call I think we can take a cleaner approach, check how template_preprocess_page() does it:

  // Prepare render array for messages. drupal_get_messages() is called later,
  // when this variable is rendered in a theme function or template file.
  $variables['messages'] = array(
    '#theme' => 'status_messages',
    '#access' => $variables['show_messages'],
  );

Working on this..

Here we go!

Yeah this is fine but I think the drupal_render() is really unnecessary here. Just set $variables['messages'] the same way template_preprocess_page() does.

Cottser, you are right, it does work without the drupal_render here.
Adding the new re-roll again.

Thanks @chakrapani!

Committed/pushed to 8.x, thanks!