Static type check added, which ensures that TSelf is a subclass of MemberwiseEquatable<TSelf>.
Static type check added, which ensures that TSelf is a subclass of MemberwiseEquatable<TSelf>.

thedmi/MayBee,thedmi/MiniGuard,thedmi/Finalist,thedmi/Equ,thedmi/Finalist,thedmi/Equ