kotlin-fork/compiler/fir/analysis-tests/testData/resolve/expresssions/errCallable.kt

class Your {
    class Nested
}

class My {
    fun foo() {
        val x = <!UNRESOLVED_REFERENCE!>::Nested<!> // Should be error
    }
}

fun Your.foo() {
    val x = <!UNRESOLVED_REFERENCE!>::Nested<!> // Still should be error
}