[Vala] Nested public struct in class broken in 0.5.7?

[Feng Yu <rainwoodman gmail com>]

Hi list,

Was nested public struct in class working in pre0.5.7? I am wondering
if Bug 567237 messed it up?

----
file a.vala:
public class bigclass {
public struct State {

}
}
file b.vala:
public class anotherclass {
  public function a(bigclass big) {  }
}

Regards,

Yu