ace: treat Annotations{} and Annotations(nil) as equal
ace: treat Annotations{} and Annotations(nil) as equal

jonboulle/spec,squeed/spec,dgonyeo/spec,dgonyeo/spec,dgonyeo/spec,squeed/spec,jonboulle/spec,appc/spec,appc/spec,squeed/spec,jonboulle/spec,appc/spec