Update C++17 library status tables

	* doc/xml/manual/status_cxx2017.xml: Document P0024R2 status.
	* doc/html/*: Regenerate.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@270559 138bc75d-0d04-0410-961f-82ee72b054a4
15 files changed