addAll(getClassifierSymbols(shortName))
        }
    }

    /**
     * Tries to resolve [fqName] into available extension callables (functions or properties)
     * prefixed with a suitable extension receiver type (like in `Foo.bar`, or `foo.Foo.bar`).
     *
     * Relies on the fact that in such references only the last qualifier refers to the

- [`KT-42136`](https://youtrack.jetbrains.com/issue/KT-42136) NI: False positive [USELESS_CAST] when list serves to create a mutable list
- [`KT-41721`](https://youtrack.jetbrains.com/issue/KT-41721) SAM conversion fails on varargs with type approximated to Nothing