Corporate Income Tax; Revising the definition of the term “adjusted federal income” to prohibit specified deductions, limit certain carryovers, and require subtractions of certain dividends paid and received within a unitary combined group to determine subtractions from taxable income; repealing a provision relating to the adjusted federal income of affiliated groups; specifying requirements for, limitations on, and prohibitions in calculating and reporting income in a unitary combined group return; requiring all members of a unitary combined group to use the unitary combined reporting method, etc.