Add a `private` field to `WP_Posts_List_Table`, `$is_trash`.

See #30891.

Built from https://develop.svn.wordpress.org/trunk@31165


git-svn-id: http://core.svn.wordpress.org/trunk@31146 1a063a9b-81f0-0310-95a4-ce76da25c4cd

wp-admin/includes/class-wp-posts-list-table.php

@@ -45,6 +45,8 @@ class WP_Posts_List_Table extends WP_List_Table {
 	 */
 	private $sticky_posts_count = 0;
 
+	private $is_trash;
+
 	/**
 	 * Constructor.
 	 *

wp-includes/version.php

@@ -4,7 +4,7 @@
  *
  * @global string $wp_version
  */
-$wp_version = '4.2-alpha-31164';
+$wp_version = '4.2-alpha-31165';
 
 /**
  * Holds the WordPress DB revision, increments when changes are made to the WordPress DB schema.