forward_list.h (_Fwd_list_base(const _Node_alloc_type&)): Change parameter to rvalue...

forward_list.h (_Fwd_list_base(const _Node_alloc_type&)): Change parameter to rvalue-reference.

	* include/bits/forward_list.h
	(_Fwd_list_base(const _Node_alloc_type&)): Change parameter to
	rvalue-reference.
	(_Fwd_list_base(_Fwd_list_base&&, const _Node_alloc_type&)): Likewise.
	(forward_list(const _Alloc&)): Split default constructor out to
	separate function.
	(forward_list(forward_list&&, const _Alloc&)): Move elements if base
	class didn't do so.
	(forward_list::_M_move_assign(forward_list&&, true_type)): Replace
	swap call with two assignments.
	* include/bits/forward_list.tcc
	(_Fwd_list_base(_Fwd_list_base&&, const _Node_alloc_type&)): Don't
	move elements when allocators are not equal.
	* include/debug/forward_list (forward_list(const allocator_type&)):
	Split default constructor out to separate function.
	* include/profile/forward_list (forward_list(const _Alloc&)):
	Likewise.

From-SVN: r224566