Grammar Issues

[a4sriniv]

• (components.map { "\($0)=\($1)" } as [String]).joinWithSeparator("&") does not parse
• @available(*, deprecated=3.4.0) is a valid attribute that does not parse
• protocol is a valid identifier name
• @available(iOS 9.0, OSX 10.11, tvOS 9.0, *) does not parse