public abstract interface AddNotNullJavaSubtype : R|kotlin/Any| {
    public abstract interface Sub : R|test/AddNotNullJavaSubtype.Super| {
        public abstract fun foo(): R|kotlin/String|

    }

    public abstract interface Super : R|kotlin/Any| {
        public abstract fun dummy(): R|kotlin/Unit|

        public abstract fun foo(): R|kotlin/CharSequence|?

    }

}
