AnyGenerator Leak?

anygenerator_leak.swift.swift

let count = 3
var current = 0
let g = AnyGenerator<Int>(body: {
    if current < count {
        current += 1
        return current - 1
    } else {
        return nil
    }
})

while let num = g.next() {
    print(num)
}

// This will also leak in Release build
let g = AnyGenerator<Int>(body: { return nil })

// But manipulate the generator by wrapping it in an array for example would fix the leak:
let g = AnyGenerator<Int>(body: { return nil })
let _ = Array(g)