FILE: test.kt
    public abstract interface Proxy : R|kotlin/Any| {
        public abstract val x: R|kotlin/String|
            public get(): R|kotlin/String|

    }
    public open class Intermediate : R|Base| {
        public constructor(): R|Intermediate| {
            super<R|Base|>()
        }

        public final val x: R|kotlin/String|
            public get(): R|kotlin/String| {
                ^ String( )
            }

    }
    public final class Derived : R|Proxy|, R|Intermediate| {
        public constructor(): R|Derived| {
            super<R|Intermediate|>()
        }

        public final fun test(): R|kotlin/Unit| {
            this@R|/Derived|.R|/Proxy.x|
        }

    }