title: How to access non-localized description of Error?
body: <p>It seems that the <code>Error</code> type in Swift provides only one property, <code>localizedDescription</code>. My app will be running on machines set to other languages than English. I would like to write error reports (for my perusal, not the user’s) in English: I need the non-localized description of the error. How can I get it?</p>