First off, let’s not get caught up in semantics: “Halloween Ends” doesn’t mark the end of the “Halloween” movies any more than your favorite artist’s “farewell tour” means they’re never going to hit the road again. Horror movie icons never die, it’s way too hard to create lasting ones, and Michael Myers is arguably as popular now as he’s ever been. Why kill him off for good? But “Halloween Ends” does mark the closing of a major chapter in the Michael Myers saga. And it’s a hugely satisfying one, smartly written and bold enough to take sizable leaps with the Michael Myers myth. It plays with we…