FILE: variables.kt
    public? final? fun foo(): kotlin/Unit {
        lval x: <implicit> = Int(1)
        lvar y: <implicit> = plus#(x#, Int(1))
        lval z: <implicit> = times#(y#, Int(2))
        y# = plus#(y#, z#)
        lval w: <implicit> = minus#(y#, x#)
        ^foo w#
    }
