(decedent’s wife filed petition for declaratory judgment to determine whether bequests to deceased children passed as residue of estate or to lineal descendants; trial court held Texas’ anti-lapse statute applied so bequest made to pre-deceased children of decedent passed to grandchildren; appellate court found intention of decedent that anti-lapse statute should not apply due to language indicating lapsed gifts should be treated as residuary and other provisions expressly providing for specific gifts to be given to lineal descendants; trial court reversed).