FILE: doubleGenericDiamond.kt
    public abstract interface Left : R|kotlin/Any| {
    }
    public abstract interface Right : R|kotlin/Any| {
    }
    public final class Bottom : R|Left|, R|Right| {
        public constructor(): R|Bottom| {
            super<R|kotlin/Any|>()
        }

    }
    public abstract interface A<T> : R|kotlin/Any| {
        public open fun f(): R|T?| {
            ^f Null(null)
        }

    }
    public abstract interface B<T : R|Left|> : R|A<T>| {
        public open override fun f(): R|T?| {
            ^f Null(null)
        }

    }
    public abstract class C<T> : R|A<T>| {
        public constructor<T>(): R|C<T>| {
            super<R|kotlin/Any|>()
        }

    }
    public abstract class D<T : R|Right|> : R|C<T>| {
        public constructor<T : R|Right|>(): R|D<T>| {
            super<R|C<T>|>()
        }

    }
    public final class Z : R|D<Bottom>|, R|B<Bottom>| {
        public constructor(): R|Z| {
            super<R|D<Bottom>|>()
        }

    }