kotlin/compiler/testData/codegen/box/objects/companionObjectAccess/privateCompanionObjectUsedInNestedClass.kt

// !LANGUAGE: +ProperVisibilityForCompanionObjectInstanceField

class Outer {
    private companion object {
        override fun toString(): String = "OK"
    }

    class Nested {
        fun foo(): Any = Outer.Companion
    }

    fun test() = Nested().foo().toString()
}

fun box() = Outer().test()