WASHINGTON — Four of the five Supreme Court justices who overturned the constitutional right to abortion showed up at the conservative Federalist Society’s black-tie dinner marking its 40th anniversary.Justice Samuel Alito got a long, loud ovation Thursday night from a crowd of 2,000 people, most in tuxedos and gowns, when another speaker praised his opinion in June that overturned Roe v. Wade, long a target of judicial conservatives.At a moment when opinion surveys show that Americans think the court is …