Add tests for reaching the end of RangeInclusive as an iterator
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@ -1076,6 +1076,26 @@ fn test_range() {
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(isize::MAX as usize + 2, Some(isize::MAX as usize + 2)));
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}
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#[test]
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fn test_range_inclusive_exhaustion() {
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let mut r = 10...10;
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assert_eq!(r.next(), Some(10));
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assert_eq!(r, 1...0);
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let mut r = 10...10;
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assert_eq!(r.next_back(), Some(10));
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assert_eq!(r, 1...0);
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let mut r = 10...12;
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assert_eq!(r.nth(2), Some(12));
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assert_eq!(r, 1...0);
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let mut r = 10...12;
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assert_eq!(r.nth(5), None);
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assert_eq!(r, 1...0);
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}
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#[test]
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fn test_range_nth() {
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assert_eq!((10..15).nth(0), Some(10));
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