function y()
 {
     SELF::definedInParent();
     SELF::definedInParentParent();
     SELF::undefined();
     SELF::definedinStatic();
     SELF::$pdefinedInParent;
     SELF::$pdefinedInParentParent;
     SELF::$pundefined;
     SELF::$pdefinedinStatic;
 }