public protocol P1 {}
public protocol P2 {}

@_fixed_layout
public struct S1: P1 {
  public static func foo1() {}
  mutating public func foo2() {}
  internal func foo3() {}
  private func foo4() {}
  fileprivate func foo5() {}
  public func foo6() -> Void {}
}

extension S1: P2 {}

public class C0<T1, T2, T3> {}

public class C1: C0<S1, S1, S1> {
	open class func foo1() {}
	public weak var Ins : C1?
	public unowned var Ins2 : C1 = C1()
}

public extension C0 where T1 == S1, T2 == S1, T3 == S1 {
  func conditionalFooExt() {}
}

public extension C0 {
  func unconditionalFooExt() {}
}

public func foo1(_ a: Int = 1, b: S1) {}
public func foo2(_ a: Int = #line, b: S1) {}

public enum Number: Int {
  case one
}

public func foo3(_ a: [Int: String]) {}

public extension Int {
  public func foo() {}
}