[clang] [clang][dataflow] Propagate locations from result objects to initializers. (PR #87320)

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martinboehme wrote:

> I know it is not exactly what we need, but I found `Expr::skipRValueSubobjectAdjustments` in the compiler. I think it might be a good idea to take a look just in case there is something we forgot to cover, and maybe in the future we could look for factoring out some common code.

Thanks! I took a look and didn't see anything in there that we would need to cover but don't yet.

https://github.com/llvm/llvm-project/pull/87320