Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/errors/cs0120-19.cs

@@ -0,0 +1,27 @@
+// CS0120: An object reference is required to access non-static member `MainClass.Callback()'
+// Line: 9
+
+using System;
+
+class MainClass : BaseClass
+{
+	public MainClass (string a, Action callback)
+		: base (a, () => Callback ())
+	{
+	}
+
+	private void Callback ()
+	{
+	}
+}
+
+public class BaseClass
+{
+	public BaseClass (string a, int b)
+	{
+	}
+
+	public BaseClass (string a, Action callback)
+	{
+	}
+}