swift234

[stdlib] Move ObjC Mirrors out of Foundation

These mirrors are the default mirrors that get used for all objective-C
object, including some that aren't defined in Foundation:

  import Dispatch
  println(dispatch_get_global_queue(0,0))

This example isn't fixed yet, because we need to pull all the string
bridging goop out of Foundation and into the core standard library.

Swift SVN r25012