Zephir Zend Registry fill

Registry.php

<?php
/**
 * Here we conditionally defined Zend_Registry
 * When our custom Zephir module is installed, Zend\Registry becomes available.
 * https://github.com/sean3z/zendframework-zephir
 */

if (class_exists('Zend\\Registry')) {  
    class Zend_Registry extends Zend\Registry {
        // No code block needed here since we extend Zend\Registry
    }
} else {
    class Zend_Registry extends ArrayObject {
        /**
         * Stock ZF1 Zend_Registry block goes here
         * https://github.com/zf1/zend-registry/blob/master/library/Zend/Registry.php
         */
    }
}