Update tests/pos/i13106.java

Co-authored-by: Paweł Marks <Kordyjan@users.noreply.github.com>

Author: odersky

tests/pos/i13106.java

@@ -1,7 +1,7 @@
-public final class A {
+final class A {
   public static final class C { }
   public static final class D {
     public static final class C { }
     public C foo() { return new C(); }
   }
-}
+}