(1) Validates any bonds, notes, warrants, certificates, or other evidences of indebtedness issued by any officer, political subdivision, or instrumentality of this state;
(2) Validates any action or cures any defect of any action of any public officer, political subdivision, or instrumentality of this state;
(3) Cures any defect in any title to property; or
(4) Validates any action or cures any defect in any action of any person, natural or artificial, public or private.