Docs: Add missing `@return` entry for `WP_Comment_Query::get_comment_ids()`.

Props chetan200891, birgire.
Fixes #42795.
Built from https://develop.svn.wordpress.org/trunk@42376


git-svn-id: http://core.svn.wordpress.org/trunk@42205 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-includes/class-wp-comment-query.php

@@ -471,6 +471,8 @@ class WP_Comment_Query {
 	 * @since 4.4.0
 	 *
 	 * @global wpdb $wpdb WordPress database abstraction object.
+	 *
+	 * @return int|array A single count of comment IDs if a count query. An array of comment IDs if a full query.
 	 */
 	protected function get_comment_ids() {
 		global $wpdb;

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '5.0-alpha-42374';
+$wp_version = '5.0-alpha-42376';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.