Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/tests/gtest-589.cs

@@ -0,0 +1,40 @@
+using System;
+
+public class Z : IGenericInterface<Z>
+{
+	public Z Start ()
+	{
+		return this;
+	}
+
+	Z IGenericInterface<Z>.Start ()
+	{
+		throw new ApplicationException ();
+	}
+}
+
+public interface IGenericInterface<T>
+{
+	T Start ();
+}
+
+public class A<T> where T : Z, IGenericInterface<int> 
+{
+	public void SomeOperation (T t)
+	{
+		t.Start ();
+	}
+}
+
+public class C : Z, IGenericInterface<int> 
+{
+	int IGenericInterface<int>.Start ()
+	{
+		throw new NotImplementedException ();
+	}
+
+	public static void Main ()
+	{
+		new A<C> ().SomeOperation (new C ());
+	}
+}