FILE: complexConstraintSystem.kt
    public final class Inv<X> : R|kotlin/Any| {
        public constructor<X>(x: R|X|): R|Inv<X>| {
            super<R|kotlin/Any|>()
        }

        public final val x: R|X| = R|<local>/x|
            public get(): R|X|

    }
    public final fun test_0(list: R|kotlin/collections/List<kotlin/Int>|, b: R|kotlin/Boolean|): R|kotlin/Unit| {
        lval x: R|kotlin/Int| = R|<local>/list|.R|kotlin/collections/mapNotNull|<R|kotlin/Int|, R|Inv<kotlin/Int>|>(<L> = mapNotNull@fun <anonymous>(it: R|kotlin/Int|): R|Inv<kotlin/Int>?| <kind=UNKNOWN>  {
            ^ when () {
                R|<local>/b| ->  {
                    R|/Inv.Inv|<R|kotlin/Int|>(R|<local>/it|)
                }
                else ->  {
                    Null(null)
                }
            }

        }
        ).R|kotlin/collections/first|<R|Inv<kotlin/Int>|>().R|FakeOverride</Inv.x: R|kotlin/Int|>|
    }