(a) An action of an equitable nature shall only be commenced within the time limited to commence an action as provided in this chapter.
(b) An action for the determination of any right or claim to or interest in real property shall be deemed within the limitations provided for actions for the recovery of the possession of real property.
(c) In an action upon a new promise, fraud, or mistake, the limitation shall be deemed to commence only from the making of the new promise or the discovery of the fraud or mistake.