[clang-tools-extra] [clangd] Replay macro definitions from preamble for clang-tidy checks (PR #202495)

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QixiQAQ wrote:

@ArcsinX Done — updated my GitHub email settings, amended the commit, and force-pushed. New commit: 5866ce76cdce. The author email should now show correctly.

https://github.com/llvm/llvm-project/pull/202495