FILE: main.kt
    public abstract interface B : R|kotlin/Any| {
        public open fun foo(x: R|kotlin/Int|): R|kotlin/Unit| {
        }

    }
    public final class C : R|A|, R|B| {
        public constructor(): R|C| {
            super<R|A|>()
        }

    }
    public final fun main(): R|kotlin/Unit| {
        R|/C.C|().<Ambiguity: foo, [/A.foo, /B.foo]>#(Int(42))
    }
