[clang] [Clang] Introduce a trait to determine the structure binding size (PR #131515)

[Akira Hatanaka via cfe-commits]

ahatanak wrote:

It looks like this PR introduced some undefined behavior. https://green.lab.llvm.org/job/llvm.org/job/clang-stage2-cmake-RgSan/767/testReport/

Could you take a look at the failing tests and fix them or revert the PR?

https://github.com/llvm/llvm-project/pull/131515