// NAME: X
// INFO: {checked: "true"}
interface T {}

open class A

interface X : T {
    // INFO: {checked: "true", toAbstract: "true"}
    fun foo()
}

// SIBLING:
class B : A(), X {
    // INFO: {checked: "true", toAbstract: "true"}
    override fun foo() {

    }
}