import Foundation
import CoreData

protocol P {
    init?(i: Int)
}


class C {
    func f<T: NSObject>(i: Int) -> T? where T: P {
        return T(i: i)  // compiles OK
    }
    
    func g<T: NSManagedObject>(i: Int) -> T? where T: P {
        return T(i: i)  // doesn't compile: "Incorrect argument label in call
                        // (have: 'i:', expected 'context:')
    }
}