condition_variable (enum class cv_status): Add and use it throughout, per N3000.

condition_variable (enum class cv_status): Add and use it throughout, per N3000.

2010-01-29  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/std/condition_variable (enum class cv_status): Add and
	use it throughout, per N3000.
	(condition_variable_any::wait<>(_Lock&), wait<>(_Lock&, _Predicate),
	wait_until<>(_Lock&, const chrono::time_point<>&, _Predicate)):
	Provide definitions.
	* src/condition_variable.cc (condition_variable_any::notify_one,
	condition_variable_any::notify_all): Likewise.
	* config/abi/pre/gnu.ver: Export.
	* testsuite/30_threads/condition_variable_any/requirements/
	typedefs.cc: New.
	* testsuite/30_threads/condition_variable_any/requirements/
	standard_layout.cc: Likewise.
	* testsuite/30_threads/condition_variable/members/1.cc: Adjust.
	* testsuite/30_threads/condition_variable/members/2.cc: Likewise.
	* testsuite/30_threads/condition_variable/cons/assign_neg.cc: Adjust
	dg-error line numbers.
	* testsuite/30_threads/condition_variable/cons/copy_neg.cc: Likewise.
	* testsuite/30_threads/condition_variable_any/cons/assign_neg.cc:
	Likewise.
	* testsuite/30_threads/condition_variable_any/cons/copy_neg.cc:
	Likewise.

From-SVN: r156358