[clang] [clang] Prioritze decl comments from macro expansion site (PR #65481)

[Daniel Grumberg via cfe-commits]

daniel-grumberg wrote:

This is a follow up on https://reviews.llvm.org/D142560 I couldn't find Dana on here to but in the the reviewer list. Maybe @gribozavr can help locate them?

https://github.com/llvm/llvm-project/pull/65481