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

[via cfe-commits]

QixiQAQ wrote:

Ping! @HighCommander4 @ArcsinX — could either of you take a look at this PR when you have a chance? Happy to address any feedback. Thanks for your time!

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