FILE: targetOfCastIsNotDataSchema.kt
    public abstract interface MySchema : R|kotlin/Any| {
        public abstract val a: R|kotlin/String|
            public get(): R|kotlin/String|

    }
    public final fun box(): R|kotlin/String| {
        lval df: R|{org/jetbrains/kotlinx/dataframe/AnyFrame=} org/jetbrains/kotlinx/dataframe/DataFrame<*>| = Q|org/jetbrains/kotlinx/dataframe/DataFrame|.R|org/jetbrains/kotlinx/dataframe/DataFrame.Companion.Empty|
        R|<local>/df|.R|org/jetbrains/kotlinx/dataframe/api/cast|<R|MySchema|>()
        ^box String(OK)
    }