=== tests/cases/compiler/declareDottedModuleName.ts ===
module M {
>M : unknown

    module P.Q { } // This shouldnt be emitted
>P : unknown
>Q : unknown
}

module M {
>M : unknown

    export module R.S { }  //This should be emitted
>R : unknown
>S : unknown
}

module T.U { // This needs to be emitted
>T : unknown
>U : unknown
}