Decrement index in a loop after Swift C-style loops deprecated

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Here is an easier (and more Swifty) approach. 

for i in (0 ..< 5).reversed() {
    print(i) // 4,3,2,1,0
}

let array = ["a", "b", "c", "d", "e"]
for element in array.reversed() {
    print(element) // e,d,c,b,a
}

array.reversed().forEach { print($0) } // e,d,c,b,a

print(Array(array.reversed())) // e,d,c,b,a

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