Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/tests/test-856.cs

@@ -0,0 +1,38 @@
+using System;
+
+public abstract class A : IDisposable
+{
+	public int i;
+
+	public virtual void Dispose ()
+	{
+		++i;
+	}
+}
+
+public abstract class B : A
+{
+	private new void Dispose ()
+	{
+		throw new ApplicationException ("B");
+	}
+}
+
+public class C : B
+{
+	public static int Main ()
+	{
+		var c = new C ();
+		c.Dispose ();
+		if (c.i != 1)
+			return 1;
+
+		return 0;
+	}
+
+	public override void Dispose ()
+	{
+		base.Dispose ();
+	}
+}
+