Article XXIX, section 1. Notwithstanding the provisions of sections 5, and 7 of Article VIII and section 9 of Article XII or any other section or article of the Constitution of the state of Washington, the moneys of any public pension or retirement fund, industrial insurance trust fund, or fund held in trust for the benefit of persons with developmental disabilities, or fund to provide for long-term care services and supports for eligible seniors and people with disabilities may be invested as authorized by law. Investment income from a fund to provide for long-term care services and supports for eligible seniors and people with disabilities is dedicated to long-term services and supports for program beneficiaries.