[clang] [analyzer][NFC] Add StackFrame parent-chain range helpers (PR #210938)

[Balázs Benics via cfe-commits]

steakhal wrote:

> This is a great change, thank you! It would also help for the `alpha.cplusplus.UseAfterLifetimeEnd` checker as well. I reviewed the files. LGTM!

It is frequently the case that those PRs inspire me of writing these patches.

https://github.com/llvm/llvm-project/pull/210938