kotlin-fork/compiler/testData/diagnostics/testsWithStdLib/callableReference/function/constructorFromExtension.kt

// !CHECK_TYPE

import kotlin.reflect.KFunction0

class A
class B

fun A.ext() {
    val x = ::A
    val y = ::B

    checkSubtype<KFunction0<A>>(x)
    checkSubtype<KFunction0<B>>(y)
}