Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/tests/test-785.cs

@@ -0,0 +1,72 @@
+// Compiler options: -warnaserror
+
+abstract class Base
+{
+	public abstract int Prop
+	{
+		get;
+		set;
+	}
+
+	public abstract int this[int i]
+	{
+		get;
+	}
+
+	public abstract void TestVoid ();
+	public abstract void TestInt (int i);
+}
+
+abstract class DeriveVTable : Base
+{
+	public override int Prop
+	{
+		get { return 1; }
+	}
+
+	public override int this[int i]
+	{
+		get { return 1; }
+	}
+
+	public override void TestVoid ()
+	{
+	}
+
+	public override void TestInt (int i)
+	{
+	}
+}
+
+abstract class NewVTable : DeriveVTable
+{
+	public new abstract int Prop
+	{
+		get;
+	}
+
+	public new int this[int i]
+	{
+		get { return 2; }
+	}
+
+	public new void TestVoid ()
+	{
+	}
+
+	public new void TestInt (int i)
+	{
+	}
+
+	public void Overload ()
+	{
+	}
+
+	public void Overload (int i)
+	{
+	}
+
+	public static void Main ()
+	{
+	}
+}