[Bug c++/96170] Enhancement: allow requires-clause checking of statement expression substitution success or failure

[wjwray at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96170

--- Comment #1 from Will Wray <wjwray at gmail dot com> ---
Opened an equivalent enhancement request for Clang
https://bugs.llvm.org/show_bug.cgi?id=46691