Add proper descriptions for the `$methods`, `$blog_options`, and `$error` properties in `wp_xmlrpc_server`.

See [30181]. See #30224.


git-svn-id: https://develop.svn.wordpress.org/trunk@32556 602fd350-edb4-49c9-b593-d223f7449a82

src/wp-includes/class-wp-xmlrpc-server.php

@@ -22,17 +22,29 @@
  */
 class wp_xmlrpc_server extends IXR_Server {
 	/**
+	 * Methods.
+	 *
+	 * @access public
 	 * @var array
 	 */
 	public $methods;
+
 	/**
+	 * Blog options.
+	 *
+	 * @access public
 	 * @var array
 	 */
 	public $blog_options;
+
 	/**
+	 * IXR_Error instance.
+	 *
+	 * @access public
 	 * @var IXR_Error
 	 */
 	public $error;
+
 	/**
 	 * Register all of the XMLRPC methods that XMLRPC server understands.
 	 *