duplicates:

• SR-502 Closures don't work as dictionary value types.

relates to:

• SR-773 Using Array initializer syntax with nested types causes bad error message

Issue Description:

It is not possible to create directly an array of functions, like this :

var a = [() -> ()]()

But it works with a typealias :

typealias Callback = () -> ()
var b = [Callback]()