[Bug c++/57573] [C++1y] bogus "taking address of temporary" error

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=57573

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
And with the released 4.9.0 too. We should add the testcase and close it.