Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/tests/dtest-iter-01.cs

@@ -0,0 +1,19 @@
+using System;
+using System.Collections.Generic;
+
+static class Program
+{
+	public static IEnumerable<dynamic> D1 ()
+	{
+		yield break;
+	}
+
+	public static IEnumerable<Func<dynamic>> D2 ()
+	{
+		yield break;
+	}
+
+	public static void Main ()
+	{
+	}
+}