[clang] [Clang][Comments] Attach comments to decl even if preproc directives are in between (PR #88367)

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hdoc wrote:

>From my reading of the Doxygen documentation it seems like anything goes except putting the doc comment inside the actual body of a function. That being said, I think that change is out of the scope of this PR because it would likely require modifications to the Clang comment-to-decl matching functionality. It's better to do that in a separate PR

https://github.com/llvm/llvm-project/pull/88367