[Bug c++/91923] [9/10 Regression] Failure-to-SFINAE with class type NTTP in C++17

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91923

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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      Known to work|                            |8.2.0
   Target Milestone|---                         |9.3