Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/tests/gtest-597.cs

@@ -0,0 +1,44 @@
+using System;
+
+namespace Test
+{
+	class MainClass
+	{
+		public static int Main ()
+		{
+			if (!Test_1 (new Derived ()))
+				return 1;
+
+			if (!Test_2 (new S ()))
+				return 2;
+
+			return 0;
+		}
+
+		static bool Test_1<T> (Templated<T> template)
+		{
+			return template is Derived;
+		}
+
+		static bool Test_2<U> (IA<U> arg)
+		{
+			return arg is S;
+		}
+	}
+
+	public abstract class Templated<T>
+	{
+	}
+
+	public class Derived : Templated<Derived>
+	{
+	}
+
+	public interface IA<T>
+	{
+	}
+
+	public struct S : IA<S>
+	{
+	}
+}