linux-packaging-mono/mcs/tests/gtest-288.cs

using System;

public abstract class A
{
	protected bool Test (int a)
	{
		return a == 5;
	}
}

public class B : A
{
	public void Test ()
	{ }

	class C : A
	{
		B b;

		public bool Foo (int a)
		{
			return b.Test (a);
		}
	}
}

class X
{
	public static void Main ()
	{ }
}