We no longer allow extensions to provide generic parameters, and the
ability to parse the syntax
extension Array<String> { ... }
is causing confusion. Fixes rdar://problem/20873336.
Swift SVN r28468
The standard library has grown significantly, and we need a new
directory structure that clearly reflects the role of the APIs, and
allows future growth.
See stdlib/{public,internal,private}/README.txt for more information.
Swift SVN r25876
