Autocompletion fails on union namespace function

[saschanaz]

TypeScript Version: 2.5.2

Code

let n: typeof Foo | typeof Bar;
n.name; // hover on `name` does not show its type
n.n // no autocompletion

namespace Foo {
    export function name() {
        return "foo";
    }
}

namespace Bar {
    export function name() {
        return "bar";
    }
}

Expected behavior: Autocompletion should work.

Actual behavior: It doesn't.