type_traits: Implement is_const and is_volatile.

2004-12-07  Paolo Carlini  <pcarlini@suse.de>

	* include/tr1/type_traits: Implement is_const and is_volatile.
	* testsuite/testsuite_tr1.h (test_property): New.
	* testsuite/tr1/4_metaprogramming/type_properties/
	is_const/is_const.c: New.
	* testsuite/tr1/4_metaprogramming/type_properties/
	is_const/typedefs.cc: Likewise.
	* testsuite/tr1/4_metaprogramming/type_properties/
	is_volatile/is_volatile.cc: Likewise.
	* testsuite/tr1/4_metaprogramming/type_properties/
	is_volatile/typedefs.cc: Likewise.
	* testsuite/tr1/4_metaprogramming/composite_type_traits/
	is_arithmetic/is_arithmetic.cc: Slightly tweak to use ClassType
	from testsuite_tr1.h.
	* testsuite/tr1/4_metaprogramming/composite_type_traits/
	is_fundamental/is_fundamental.cc: Likewise.
	* testsuite/tr1/4_metaprogramming/primary_type_categories/
	is_array/is_array.cc: Likewise.
	* testsuite/tr1/4_metaprogramming/primary_type_categories/
	is_floating_point/is_floating_point.cc: Likewise.
	* testsuite/tr1/4_metaprogramming/primary_type_categories/
	is_integral/is_integral.cc: Likewise.
	* testsuite/tr1/4_metaprogramming/primary_type_categories/
	is_reference/is_reference.cc: Likewise.
	* testsuite/tr1/4_metaprogramming/primary_type_categories/
	is_void/is_void.cc: Likewise.

From-SVN: r91808