[clang] Revert "[DebugInfo] Ignore undefined constexpr constructors in constructor homing." (PR #221566)

[Avi Kivity via cfe-commits]

avikivity wrote:

How can it violate strict aliasing if it has a written exemption?

I suppose the question to be asked is, do compilers take this obscure rule into consideration for TBAA?

https://github.com/llvm/llvm-project/pull/221566