InitFromTypeTest.swift

protocol SomeProtocol {
    init()
}
class SomeClass: SomeProtocol {
    ...
}

// This will work
let instance: SomeProtocol = SomeClass.init()

// This won't work
let instance: SomeProtocol = SomeProtocol.init()

// Surprisingly, this also works
var type: SomeProtocol.Type!                // Expose from Swift
type = SomeClass.self                       // Move it to ObjC!
let instance: SomeProtocol = type.init()    // Use in Swift