[Bug libstdc++/92059] Crash on tr2::dynamic_bitset::operator=() with optimization

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=92059

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |9.3
      Known to fail|                            |7.4.0, 8.3.0, 9.2.0

--- Comment #13 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Also fixed for 9.3