(a) As used in this chapter and in Rules 1506 and 1531 through 1535, “action” means a civil action brought in or appealed to any court which is subject to these rules.(b) There shall be a “civil action” in which shall be brought all claims for relief heretofore aserted in
(1) the action of assumpsit,(2) the action of trespass, and(3) the action in equity. (c) Other forms of action which incorporate these rules by reference shall be known as “civil action-[type of action].”