diff --git src/wp-includes/bookmark.php src/wp-includes/bookmark.php
index 47a86d865d..8fcc1bc247 100644
--- src/wp-includes/bookmark.php
+++ src/wp-includes/bookmark.php
@@ -19,6 +19,8 @@
  *                               respectively. Default OBJECT.
  * @param string       $filter   Optional. How to sanitize bookmark fields. Default 'raw'.
  * @return array|object|null Type returned depends on $output value.
+ * 
+ * @global array link
  */
 function get_bookmark( $bookmark, $output = OBJECT, $filter = 'raw' ) {
 	global $wpdb;
diff --git src/wp-includes/class-wp-editor.php src/wp-includes/class-wp-editor.php
index bd73540bc9..5bef182c3c 100644
--- src/wp-includes/class-wp-editor.php
+++ src/wp-includes/class-wp-editor.php
@@ -153,6 +153,8 @@ final class _WP_Editors {
 	 * @param string $editor_id HTML ID for the textarea and TinyMCE and Quicktags instances.
 	 *                          Should not contain square brackets.
 	 * @param array  $settings  See _WP_Editors::parse_settings() for description.
+	 * 
+	 * @global WP_Screen $current_screen WordPress current screen object.
 	 */
 	public static function editor( $content, $editor_id, $settings = array() ) {
 		$set            = self::parse_settings( $editor_id, $settings );
diff --git src/wp-includes/widgets.php src/wp-includes/widgets.php
index c568cbe301..b549e81972 100644
--- src/wp-includes/widgets.php
+++ src/wp-includes/widgets.php
@@ -1372,6 +1372,8 @@ function retrieve_widgets( $theme_changed = false ) {
  *
  * @param array $existing_sidebars_widgets List of sidebars and their widget instance IDs.
  * @return array Mapped sidebars widgets.
+ * 
+ * @global array $wp_registered_sidebars Registered sidebars.
  */
 function wp_map_sidebars_widgets( $existing_sidebars_widgets ) {
 	global $wp_registered_sidebars;
@@ -1547,6 +1549,8 @@ function wp_map_sidebars_widgets( $existing_sidebars_widgets ) {
  * @param array $sidebars_widgets   List of sidebars and their widget instance IDs.
  * @param array $allowed_widget_ids Optional. List of widget IDs to compare against. Default: Registered widgets.
  * @return array Sidebars with allowed widgets.
+ * 
+ * * @global array wp_registered_widgets
  */
 function _wp_remove_unregistered_widgets( $sidebars_widgets, $allowed_widget_ids = array() ) {
 	if ( empty( $allowed_widget_ids ) ) {
@@ -1971,6 +1975,9 @@ function wp_assign_widget_to_sidebar( $widget_id, $sidebar_id ) {
  * @param string $widget_id Widget ID.
  * @param string $sidebar_id Sidebar ID.
  * @return string
+ * 
+ * @global array $wp_registered_widgets            Uses stored registered widgets.
+ * @global array $wp_registered_sidebars Registered sidebars.
  */
 function wp_render_widget( $widget_id, $sidebar_id ) {
 	global $wp_registered_widgets, $wp_registered_sidebars;