vector.tcc (erase(iterator, iterator), [...]): Qualify all calls to std::copy().

2004-12-29  Jonathan Wakely  <redi@gcc.gnu.org>

	* include/bits/vector.tcc (erase(iterator, iterator),
	operator=, _M_assign_aux(_ForwardIterator, _ForwardIterator,
	forward_iterator_tag)): Qualify all calls to std::copy().

From-SVN: r92724