exit status: 1 with stderr:
<stdin>:2:13: error: consecutive statements on a line must be separated by ';' let i: [Int].Iterator = a.makeIterator() ^ ; <stdin>:2:14: error: member 'Iterator' in 'IndexingIterator<[Int]>' produces result of type 'IndexingIterator<[Int]>.Iterator.Type' (aka 'IndexingIterator<Array<Int>>.Type'), but context expects 'IndexingIterator<[Int]>' let i: [Int].Iterator = a.makeIterator() ^