FILE: invoke.kt
    public final fun foo(): R|kotlin/Int| {
        lval x: R|() -> kotlin/Int| = fun <anonymous>(): R|kotlin/Int| <inline=Unknown>  {
            ^ Int(4)
        }

        lval y: R|() -> kotlin/Int| = fun <anonymous>(): R|kotlin/Int| <inline=Unknown>  {
            ^ Int(2)
        }

        ^foo Int(10).R|kotlin/Int.times|(R|<local>/x|.R|SubstitutionOverride<kotlin/Function0.invoke: R|kotlin/Int|>|()).R|kotlin/Int.plus|(R|<local>/y|.R|SubstitutionOverride<kotlin/Function0.invoke: R|kotlin/Int|>|())
    }