istream.tcc (getline(basic_istream<>&, basic_string<>&, _CharT)): Remove temporary kludge for libstdc++/15002.

2004-11-17  Paolo Carlini  <pcarlini@suse.de>

	* include/bits/istream.tcc (getline(basic_istream<>&, basic_string<>&,
	_CharT)): Remove temporary kludge for libstdc++/15002.
	* include/std/std_streambuf.h (class basic_streambuf): Declare
	getline(basic_istream<>&, basic_string<>&, _CharT) as friend.
	* include/bits/basic_string.h (getline(basic_istream<>&,
	basic_string<>&, _CharT)): Declare optimized specializations for
	char and wchar_t, using protected members of basic_streambuf.
	* src/istream.cc: Define the latter.

From-SVN: r90801