[Bug libstdc++/87704] [6/7/8/9 Regression] unique_ptr(nullptr_t) requires T to be complete

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87704

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED
   Target Milestone|---                         |6.5

--- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> ---
Fixed for 6.5, 7.4, 8.3 and 9