Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/errors/cs1722.cs

@@ -0,0 +1,25 @@
+// CS1722: `My.Namespace.MyBaseClass': Base class `My.Namespace.MyInterfaceBase' must be specified as first
+// Line: 21
+
+using System;
+
+namespace My.Namespace {
+
+
+    public interface IMyInterface {
+
+        String InterfaceProperty { get; }
+    }
+
+    public abstract class MyInterfaceBase : IMyInterface {
+
+        protected abstract String SubclassProperty { get; }
+
+        public String InterfaceProperty { get { return this.SubclassProperty; } }
+    }
+
+    public class MyBaseClass : IMyInterface, MyInterfaceBase {
+      //  protected override String SubclassProperty { get { return "foo"; } }
+    }
+}
+