Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/tests/test-anon-159.cs

@@ -0,0 +1,44 @@
+using System;
+
+namespace TestGenericsSubtypeMatching
+{
+	public class Sender<T> : IDisposable
+	{
+		public void DoSend<TMessage> (Action<T> action)
+		{
+			using (Sender<T> sub = new Sender<T> ())
+			{
+				Send (t =>
+				{
+					action(t);
+					sub.ActionOnObject (t);
+				});
+			}
+		}
+		
+		private static void Send (Action<T> action)
+		{
+		}
+		
+		void ActionOnObject (object o)
+		{
+			o.ToString ();
+		}
+	
+		#region IDisposable implementation
+		public void Dispose ()
+		{
+			Console.WriteLine ("Dispose!");
+		}
+		
+		#endregion
+	}
+	
+	public class C
+	{
+		public static void Main ()
+		{
+			new Sender<string> ().DoSend<bool>(l => Console.WriteLine (l));
+		}
+	}
+}