Add new test.

svn path=/trunk/mcs/; revision=81236

mcs/errors/cs1624-3.cs

@@ -0,0 +1,13 @@
+// CS1624: The body of `C.Test<TSource>(IEnumerable<TSource>)' cannot be an iterator block because `TSource' is not an iterator interface type
+// Line: 8
+
+using System.Collections.Generic;
+
+public class C
+{
+	public static TSource Test<TSource>(IEnumerable<TSource> source)
+	{
+		foreach (TSource element in source)
+			yield return element;
+	}
+}