Whenever resort to general laws of the State is required by this Charter for the purpose of defining the powers and duties of officers, boards, departments or commissions of the City and those general laws effective at the time the Charter is adopted shall have been thereafter repealed, supplemented or amended, then and in that event such powers and duties shall be exercised and performed as directed and authorized by existing laws. If any office, board, commission or department of cities, now existing under general laws, and to which reference is specifically made herein, shall hereafter be abolished by State law, then the reference thereto in this Charter shall apply to the office, board, commission or department that may be created by such general law to exercise and succeed to the functions, powers and duties corresponding to those pertaining to the office, board, commission or department so abolished.