xamarin-macios/tests/generator/protocol-duplicate-abstract.cs

using System;
using System.Runtime.InteropServices;

using Foundation;
using ObjCRuntime;

namespace Test {
	[Protocol]
	public interface First {
		[Abstract]
		[NullAllowed, Export ("identifier")]
		string Identifier { get; set; }

		[Abstract]
		[Export ("doit")]
		void DoIt ();

		[Abstract]
		[Export ("doit:with:more")]
		void DoIt (int a, int b);
	}

	[Protocol]
	public interface Second {
		[Abstract]
		[NullAllowed, Export ("identifier")]
		string Identifier { get; }

		[Abstract]
		[Export ("doit")]
		void DoIt ();

		[Abstract]
		[Export ("doit:with:more")]
		void DoIt (int a, int b);
	}

	[BaseType (typeof (NSObject))]
	public partial interface Derived : First, Second {
	}
}