Unify the way the interfaces are checked for shadowing

1 files changed, 43 insertions, 0 deletions

diff --git a/mcs/tests/test-804.cs b/mcs/tests/test-804.cs
new file mode 100644
index 00000000000..20483e4e7b7
--- /dev/null
+++ b/mcs/tests/test-804.cs
@@ -0,0 +1,43 @@
+using System;
+
+interface IA
+{
+	int Foo { get; }
+}
+
+interface IB_1 : IA
+{
+	new string Foo { get; }
+}
+
+interface IB_2 : IA
+{
+	new char Foo { get; }
+}
+
+interface IC : IB_2, IB_1
+{
+	new byte Foo { get; }
+}
+
+class A : IA
+{
+	public int Foo { get { return 3; } }
+}
+
+class B : A, IB_1
+{
+	public new string Foo { get { return "1"; } }
+}
+
+class C : B, IC
+{
+	char IB_2.Foo { get { return 'a'; } }
+	
+	public new byte Foo { get { return 2; } }
+	
+	public static void Main ()
+	{
+		new C ();
+	}
+}