2005-04-29  Paolo Carlini  <pcarlini@suse.de>

	* include/tr1/type_traits (is_convertible): Adjust according
	to the resolution of TR1 issue 3.20.
	* testsuite/tr1/4_metaprogramming/relationships_between_types/
	is_convertible/is_convertible.cc: Add tests.

From-SVN: r98944