(b) Parties to a marriage shall be included in any definition or use of terms such as "dependent," "family," "husband," "wife," "widow," "widower," "immediate family," "next of kin," "spouse," "stepparent," "tenants by the entirety" and other terms, whether or not gender specific, that denote a spousal or familial relationship, or a person in a spousal or familial relationship, as those terms are used throughout the Code, administrative rules or regulations, court rules, governmental policies, common law, court decisions, or any other provisions or sources of the laws of this State, including in equity, regardless of whether the parties to a marriage are the same gender or different genders.