(When) Are type aliases coming?

I saw type aliases mentioned in some older articles, and they show up in the latest published grammar (albeit the link target is missing), but from what I can tell, the language implementation doesn't support them. What's the status/plan for this feature?

-Peter

Maybe it is about type aliases in imports:

import android.support.v4.app.Fragment as SupportFragment

Type aliases will be added to Kotlin, but not in the 1.0 release