* [wholeQualifierClassId] is supposed to reflect the class which is referenced by the [wholeQualifierElement].
     *
     * N.B. Even if the [wholeQualifierElement] is not strictly in the [selection],
     * some outer part of it might be, and we want to shorten that.
     * So we have to check all the outer qualifiers.
     */
    private fun findClassifierQualifierToShorten(

            // If we have a PSI expression like `Foo.Bar.Baz()` and try to resolve `Bar` part,
            // and the only FIR that we have for that PSI is an implicit invoke call, that means that
            // `Foo.Bar` is definitely not a property access - otherwise it would have had its own FIR.
            // So, it does not make sense to try to resolve such parts of qualifiers as KtCall