Revert updated zephir_get_global
Revert updated zephir_get_global

zephir-lang/zephir,zephir-lang/zephir,phalcon/zephir,vpg/zephir,zephir-lang/zephir,zephir-lang/zephir,phalcon/zephir,zephir-lang/zephir,phalcon/zephir,vpg/zephir,phalcon/zephir,phalcon/zephir,vpg/zephir,vpg/zephir,phalcon/zephir,vpg/zephir,vpg/zephir