Fix invalid rewrite in UseExplicitNilCheckInConditions by skipping when explicit optional type annotation is present#1075

bnbarham merged 1 commit intoswiftlang:mainswiftlang/swift-format:mainfrom

TTOzzi:fix-UseExplicitNilCheckInConditionsTTOzzi/swift-format:fix-UseExplicitNilCheckInConditionsCopy head branch name to clipboard