[clang] [LifetimeSafety] Overhaul CFG and analysis to also work with trivially destructed temporary objects (PR #177985)

[Abhinav Pradeep via cfe-commits]

AbhinavPradeep wrote:

> There is no such thing as too small PR. The smaller the better, ...

True! I moreso saw the integration with analysis as a small sub-task of this I suppose :sweat_smile:. I am happy to split it into two seperate PRs

https://github.com/llvm/llvm-project/pull/177985