FILE: valueIsNeverRead.kt
    public final fun foo(): R|kotlin/Unit| {
        lvar a: R|kotlin/Int| = Int(1)
        R|<local>/a| = Int(2)
        R|<local>/a| = Int(3)
        R|<local>/a| = R|<local>/a|.R|kotlin/Int.plus|(Int(1))
    }