koher

let a: Int = 42 let b: AnyObject = a as AnyObject print(b) print(b as! Int)

Version:

swift-4.1.1-RELEASE

Output:

Error:

/usercode/main.swift:2:22: error: 'Int' is not convertible to 'AnyObject'; did you mean to use 'as!' to force downcast? let b: AnyObject = a as AnyObject ~~^~~~~~~~~~~~ as!