type_traits: Implement is_member_object_pointer, is_member_function_pointer.

2004-12-24  Paolo Carlini  <pcarlini@suse.de>

	* include/tr1/type_traits: Implement is_member_object_pointer,
	is_member_function_pointer. N.B. Due to c++/19076, the latter
	doesn't really work at the moment (a rather ugly work around
	will be provided in case the front-end bug doesn't get fixed
	soon); generalize and extend the _DEFINE_SPEC macros.
	* testsuite/tr1/4_metaprogramming/composite_type_traits/
	is_member_pointer/is_member_pointer.cc: New.
	* testsuite/tr1/4_metaprogramming/composite_type_traits/
	is_member_pointer/typedefs.cc: Likewise.
	* testsuite/tr1/4_metaprogramming/primary_type_categories/
	is_member_function_pointer/is_member_function_pointer.cc: Likewise.
	* testsuite/tr1/4_metaprogramming/primary_type_categories/
	is_member_function_pointer/typedefs.cc: Likewise.
	* testsuite/tr1/4_metaprogramming/primary_type_categories/
	is_member_object_pointer/is_member_object_pointer.cc: Likewise.
	* testsuite/tr1/4_metaprogramming/primary_type_categories/
	is_member_object_pointer/typedefs.cc: Likewise.

From-SVN: r92593