[Bug c++/88815] [9 Regression] is_constexpr (based on narrowing conversion and expression SFINAE) broken

[mpolacek at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88815
Bug 88815 depends on bug 78244, which changed state.

Bug 78244 Summary: Narrowing conversion is accepted in a function template, but it should be rejected
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78244

           What    |Removed                     |Added
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             Status|ASSIGNED                    |RESOLVED
         Resolution|---                         |FIXED