This follows 2b4fa53 which made Clang not emit destructor calls for such objects. However, they would still not get emitted as constants since CodeGenModule::isTypeConstant() only checked whether the destructor was trivial, not if it's constexpr.
Fixes Issue #61212
I'm not sure why we're querying isTypeConstant here? The global shouldn't get written to in any case. But I guess that's a separate issue.