Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/errors/cs0190-2.cs

@@ -0,0 +1,22 @@
+// CS0190: The __arglist construct is valid only within a variable argument method
+// Line: 11
+
+public class Test
+{
+	public static void Foo (__arglist)
+	{
+		System.RuntimeArgumentHandle o;
+		{
+			System.Action a = delegate () {
+				o = __arglist; 
+			};
+			
+			a ();
+		}
+	}
+	
+	public static void Main ()
+	{
+		Foo (__arglist ());
+	}
+}