=== tests/cases/conformance/externalModules/a.ts ===
import * as Foo from './foo';
>Foo : typeof Foo

Foo.fn();
>Foo.fn() : void
>Foo.fn : () => void
>Foo : typeof Foo
>fn : () => void

let x: Foo.Thing;
>x : Foo.Thing
>Foo : any
>Thing : Foo.Thing

let y: number = x.n;
>y : number
>x.n : number
>x : Foo.Thing
>n : number

=== tests/cases/conformance/externalModules/foo.d.ts ===

export var x: number;
>x : number

export function fn(): void;
>fn : () => void

export interface Thing { n: typeof x }
>Thing : Thing
>n : number
>x : number

export as namespace Foo;
>Foo : typeof Foo