=== tests/cases/compiler/external.d.ts ===
export default class C {}
>C : Symbol(C, Decl(external.d.ts, 0, 0))

=== tests/cases/compiler/main.ts ===
declare module "M" {
>"M" : Symbol("M", Decl(main.ts, 0, 0))

    export * from "external"
}
