FILE: lists.kt
    public abstract class MyStringList : R|kotlin/collections/List<kotlin/String>| {
        public constructor(): R|MyStringList| {
            super<R|kotlin/Any|>()
        }

    }
    public abstract class MyMutableStringList : R|kotlin/collections/MutableList<kotlin/String>| {
        public constructor(): R|MyMutableStringList| {
            super<R|kotlin/Any|>()
        }

    }
    public final fun R|kotlin/collections/List<kotlin/String>|.convert(): R|MyStringList| {
        ^convert (this@R|/convert| as R|MyStringList|)
    }
    public final fun ret(l: R|kotlin/collections/MutableList<kotlin/String>|): R|MyMutableStringList| {
        ^ret (R|<local>/l| as R|MyMutableStringList|)
    }
