boost_concept_check.h: Fix old attribute syntax.

boost_concept_check.h: Fix old attribute syntax.

2004-05-17  Jonathan Wakely  <redi@gcc.gnu.org>

	* include/bits/boost_concept_check.h: Fix old attribute syntax.
	* testsuite/23_containers/map/modifiers/swap.cc: Define operator<
	to pass concept-checks.
	* testsuite/23_containers/multimap/modifiers/swap.cc: Same.
	* testsuite/23_containers/set/modifiers/swap.cc: Same.
	* testsuite/23_containers/multiset/modifiers/swap.cc: Same.

From-SVN: r81953