[clang] [analyzer] Implement LifetimeModeling checker and refactor UseAfterLifetimeEnd (PR #205951)

[Gábor Horváth via cfe-commits]

Xazax-hun wrote:

Let's merge this to make progress and to be able to rebase the dependent PRs. Any further comments can be addressed as follow-ups. 

https://github.com/llvm/llvm-project/pull/205951