Open Radar

 
Summary:
In Swift, iterating over 3...2 exits as expected, whereas iterating over 3...1 loops infinitely.

Steps to Reproduce:
Run the attached playground file [not attached in OpenRadar], which contains:

import Foundation

var x = 0
for i in 3...2 { // expected never to run
    println(i)
    x = i
}
assert(x == 0) // never ran, as expected
x

x = 0
for i in 3...1 { // expected never to run but unexpectedly loops infinitely
    println(i)
    x = i
}
assert(x == 0) // never reached


Expected Results:
Expected both loops to not run their bodies and leave x unchanged at 0

Actual Results:
The second for loop ran infinitely (it may have stopped when it hit Int.max, but that's beside the point so I didn't test it).

Version:
Xcode Version 6.0 (6A215l)
OS X 10.9.3 build 13D65