Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/tests/gtest-193.cs

@@ -0,0 +1,29 @@
+using System;
+using System.Collections.Generic;
+
+public class OrderedMultiDictionary<T,U>
+{
+        private RedBlackTree<KeyValuePair<T,U>> tree;
+
+        private IEnumerator<T> EnumerateKeys (RedBlackTree<KeyValuePair<T,U>>.RangeTester rangeTester)
+        {
+                tree.EnumerateRange (rangeTester);
+		yield break;
+	}
+}
+
+internal class RedBlackTree<S>
+{
+        public delegate int RangeTester (S item);
+
+        public IEnumerable<S> EnumerateRange (RangeTester rangeTester)
+	{
+		yield break;
+	}
+}
+
+class X
+{
+	public static void Main ()
+	{ }
+}