2010-11-02  Benjamin Kosnik  <bkoz@redhat.com>

	* include/std/chrono: Use typedefs.
	* testsuite/20_util/duration/requirements/typedefs_neg1.cc: Adjust
	line numbers.
	* testsuite/20_util/duration/requirements/typedefs_neg2.cc: Same.
	* testsuite/20_util/duration/requirements/typedefs_neg3.cc: Same.
	* testsuite/20_util/ratio/cons/cons_overflow_neg.cc: Same.

From-SVN: r166229