* include/bits/stl_tree.h
	(_Rb_tree_iterator<>::operator==): Make inline friend.
	(_Rb_tree_iterator<>::operator!=): Likewise.
	(_Rb_tree_const_iterator<>::operator==): Likewise.
	(_Rb_tree_const_iterator<>::operator!=): Likewise.
	(operator==(const _Rb_tree_iterator<>&,
	const _Rb_tree_const_iterator&)): Remove.
	(operator!=(const _Rb_tree_iterator<>&,
	const _Rb_tree_const_iterator&)): Remove.
	(operator==(const _Rb_tree<>&, const _Rb_tree<>&)): Make inline friend.
	(operator<(const _Rb_tree<>&, const _Rb_tree<>&)): Likewise.
	(operator!=(const _Rb_tree<>&, const _Rb_tree<>&)): Likewise and
	deprecate.
	(operator>(const _Rb_tree<>&, const _Rb_tree<>&)): Likewise.
	(operator<=(const _Rb_tree<>&, const _Rb_tree<>&)): Likewise.
	(operator>=(const _Rb_tree<>&, const _Rb_tree<>&)): Likewise.
	* include/debug/map.h (map<>::erase(const_iterator, const_iterator)):
	Compare __victim with _Base::cend().
	* include/debug/multimap.h
	(multimap<>::erase(const_iterator, const_iterator)): Likewise.
	* include/debug/set.h (set<>::erase(const_iterator, const_iterator)):
	Compare __victim with _Base::cend().
	* include/debug/multiset.h
	(multiset<>::erase(const_iterator, const_iterator)): Likewise.

From-SVN: r264875