2012-04-15  Paolo Carlini  <paolo.carlini@oracle.com>

	PR libstdc++/52702
	* include/std/type_traits (is_trivially_destructible): Add.
	(has_trivial_destructor): Remove.
	* testsuite/util/testsuite_common_types.h: Adjust.
	* testsuite/20_util/tuple/requirements/dr801.cc: Likewise.
	* testsuite/20_util/pair/requirements/dr801.cc: Likewise.
	* testsuite/20_util/is_trivially_destructible/value.cc: New.
	* testsuite/20_util/is_trivially_destructible/requirements/
	typedefs.cc: Likewise.
	* testsuite/20_util/is_trivially_destructible/requirements/
	explicit_instantiation.cc: Likewise.
	* testsuite/20_util/make_signed/requirements/typedefs_neg.cc:
	Adjust dg-error line numbers.
	* testsuite/20_util/make_unsigned/requirements/typedefs_neg.cc:
	Likewise.
	* testsuite/20_util/declval/requirements/1_neg.cc: Likewise.

From-SVN: r186474