In relation to registered freehold land, the following provisions shall have effect -
(a) "heir" or "heirs" used as a word of limitation in any enactment, deed or instrument passed or executed either before or after the passing of this Act shall have the same effect as if this Act had not been passed;
(b) "heir" or "heirs" used as a word of purchase in any enactment, deed or instrument passed or executed before the commencement of this Act shall bear the same meaning as if this Act had not passed;
(c) "heir" or "heirs" used as a word of purchase in any enactment, deed or instrument passed or executed after the commencement of this Act shall, unless a contrary intention appears, be construed to mean the person or persons, other than a creditor, who would be beneficially entitled to the personal estate of the ancestor if the ancestor had died intestate;
(d) subject as aforesaid, references to the heirs of any person in any enactment, deed or instrument passed or executed either bef