[clang] [Lifetime Safety] Highlight lifetimebound calls in alias chain diagnostics (PR #206337)

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https://github.com/NeKon69 commented:

Before I do a more thorough though, can you resolve the conflicts? We recently merged a PR that added cross-block `buildOriginFlowChain` implementation which would change up the code here quite a bit.

https://github.com/llvm/llvm-project/pull/206337