Notwithstanding any other provision of law, any funds, including capital, belonging to or under the control of any bank, trust company, savings bank, or savings institution and any funds belonging to or under the control of any administrators, executors, trustees, fiduciaries, guardians, or curators of the estates of minors or insane persons may be invested in obligations issued, assumed, or guaranteed by the International Bank for Reconstruction and Development, by the Inter-American Development Bank, by the Asian Development Bank, or by the African Development Bank.