istream.cc (basic_istream<char>::ignore(streamsize), [...]): Revert 2005-01-05 change...

2005-01-11  Paolo Carlini  <pcarlini@suse.de>

	* src/istream.cc (basic_istream<char>::ignore(streamsize),
	basic_istream<char>::ignore(streamsize, int_type),
	basic_istream<wchar_t>::ignore(streamsize),
	basic_istream<wchar_t>::ignore(streamsize, int_type)): Revert
	2005-01-05 change: actually, the previous behavior is conforming
	and consistent with that of get(char_type*, streamsize, char_type),
	albeit slightly different from that of 3.3/3.4 in a corner case
	due to the use of snextc.
	* include/bits/istream.tcc (ignore(streamsize), ignore(streamsize,
	int_type)): Likewise.
	* testsuite/27_io/basic_istream/ignore/char/4.cc: Remove.
	* testsuite/27_io/basic_istream/ignore/wchar_t/4.cc: Likewise.

From-SVN: r93189