* include/profile/forward_list: Update to meet allocator-aware
	requirements.
	* include/debug/forward_list: Likewise.
	* include/debug/vector: Verify allocators are swapped or equal.
	* include/debug/macros.h (__glibcxx_check_equal_allocs): Define.
	* include/debug/formatter.h: Add new debug message.
	* src/c++11/debug.cc: Likewise.
	* testsuite/23_containers/forward_list/allocator/swap.cc: Do not
	swap containers with non-propagating, non-equal allocators.
	* testsuite/23_containers/vector/allocator/swap.cc: Likewise.

From-SVN: r193186