CoreData macOS 10.13 Beta 2 to Beta 3 API Differences

NSManagedObjectContext.h
Modified -[NSManagedObjectContext performBlock:]
Declaration
From- (void)performBlock:(nonnull void (^)())block
To- (void)performBlock:(nonnull void (^)(void))block

Modified -[NSManagedObjectContext performBlockAndWait:]
Declaration
From- (void)performBlockAndWait:(nonnull void (^)())block
To- (void)performBlockAndWait:(nonnull void (^)(void))block

NSPersistentStoreCoordinator.h
Modified -[NSPersistentStoreCoordinator performBlock:]
Declaration
From- (void)performBlock:(nonnull void (^)())block
To- (void)performBlock:(nonnull void (^)(void))block

Modified -[NSPersistentStoreCoordinator performBlockAndWait:]
Declaration
From- (void)performBlockAndWait:(nonnull void (^)())block
To- (void)performBlockAndWait:(nonnull void (^)(void))block