swift234

Three things:
 - Make @autoclosure imply @__noescape everywhere, not just in the stdlib.
 - Change various noescape diagnostics to refer to "parameters", not "arguments" of the function.
 - Teach the noescape diagnostics to notice if the noescape problem is due to an
   @autoclosure argument that is implicitly noescape.  In this case, produce a helpful note
   that indicates that the invalid use of the noescape is due to the autoclosure implying it.



Swift SVN r24222