FILE: dataFlowInfoFromWhileCondition.kt
    public abstract interface A : R|kotlin/Any| {
        public abstract fun foo(): R|kotlin/Boolean|

    }
    public abstract interface B : R|A| {
    }
    public abstract interface C : R|A| {
    }
    public final fun test(): R|kotlin/Unit| {
        lvar a: R|A?| = Null(null)
        while((R|<local>/a| is R|B|) || (R|<local>/a| is R|C|)) {
            R|<local>/a|.R|/A.foo|()
        }

    }