New functions added on 2021/11/13:
- _disable_block_editor_for_navigation_post_type
- _disable_content_editor_for_navigation_post_type
- _enable_content_editor_for_navigation_post_type
- _wp_get_menu_items_at_location
- _wp_migrate_menu_to_navigation_post
- _wp_parse_blocks_from_menu_items
- _wp_register_default_navigation_areas
- _wp_sort_menu_items_by_parent_id
- get_navigation_areas
- register_navigation_areas
- wp_maybe_enqueue_oembed_host_js