Imported Upstream version 3.6.0

Former-commit-id: da6be194a6b1221998fc28233f2503bd61dd9d14

mcs/errors/cs0453-2.cs

@@ -0,0 +1,12 @@
+// CS0453: The type `Foo' must be a non-nullable value type in order to use it as type parameter `T' in the generic type or method `System.Nullable<T>'
+// Line: 10
+public class Foo
+{ }
+
+class X
+{
+	static void Main ()
+	{
+		Foo? foo = new Foo ();
+	}
+}