// Test 96: Complex program with func, if, while, println
func sumUpTo(n: Float64) {
    var total = 0.0
    var i = n
    while (i > 0.0) {
        total = total + i
        i = i - 1.0
    }
    return total
}
let result = sumUpTo(10.0)
println(result)
// Expected: 55.0