forward_list.tcc (_Fwd_list_node_base:: _M_transfer_after): Return _Fwd_list_node_base*.

2010-03-15  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/bits/forward_list.tcc (_Fwd_list_node_base::
	_M_transfer_after): Return _Fwd_list_node_base*.
	(forward_list<>::_M_splice_after): Add.
	(forward_list<>::insert_after(const_iterator, size_type, const _Tp&),
	insert_after(const_iterator, _InputIterator, _InputIterator),
	insert_after(const_iterator, initializer_list<>)): Use the above,
	implement DR 1278 ([Ready] in Pittsburgh).
	* include/bits/forward_list.h (insert_after(const_iterator,
	size_type, const _Tp&), insert_after(const_iterator, _InputIterator,
	_InputIterator), insert_after(const_iterator, initializer_list<>)):
	Only declare.
	* testsuite/23_containers/forward_list/modifiers/2.cc: Adjust.
	* testsuite/23_containers/forward_list/requirements/dr438/
	assign_neg.cc: Adjust dg-error line number.
	* testsuite/23_containers/forward_list/requirements/dr438/
	insert_neg.cc: Likewise.
	* testsuite/23_containers/forward_list/requirements/dr438/
	constructor_1_neg.cc: Likewise.
	* testsuite/23_containers/forward_list/requirements/dr438/
	constructor_2_neg.cc: Likewise.

From-SVN: r157471