future (launch): Update enumerators and define operators required for bitmask type.

future (launch): Update enumerators and define operators required for bitmask type.

2011-05-28  Jonathan Wakely  <jwakely.gcc@gmail.com>

	* include/std/future (launch): Update enumerators and define
	operators required for bitmask type. Remove trailing whitespace.
	* src/future.cc: Remove trailing whitespace.
	* testsuite/30_threads/async/any.cc: Adjust.
	* testsuite/30_threads/async/sync.cc: Adjust.
	* testsuite/30_threads/async/launch.cc: New.

From-SVN: r174374