FIX, adding a missing return statement.

This causes issues such as an `_function` to incorrectly return null.

core/Object.php

@@ -949,7 +949,7 @@ protected function addWrapperMethod($method, $wrap) {
 	protected function createMethod($method, $code) {
 		self::$extra_methods[get_class($this)][strtolower($method)] = array (
 			'function' => function($obj, $args) use ($code) {
-                eval($code);
+                return eval($code);
             }
 		);
 	}