Union type unrolling is broken when it's aliased in a referenced file

[Schahen]

Following code:

/* file1.d.ts */
declare class Foo {}

type Key = Key2 | number;
type Key2 = string | Foo;

/* file2.d.ts */
/// <reference path="file1.d.ts" />

declare function barKey(a: Key|number);

Is translated to:

/* file2.kt */
external fun barKey(a: Key): Unit
external fun barKey(a: Number): Unit

While actually what I expect to see (and what happens when alias is in the same file):

external fun barKey(a: String): Unit
external fun barKey(a: Foo): Unit
external fun barKey(a: Number): Unit

[Schahen]

fixed in 0.0.12