let a: () -> Int = { 42 } print(a as AnyObject === a as AnyObject) // false let b = a as @convention(block) () -> Int print(b as AnyObject === b as AnyObject) // truelet a: () -> Int = { 42 } print(a as AnyObject === a as AnyObject) // false let b = a as @convention(block) () -> Int print(b as AnyObject === b as AnyObject) // true