[clang] [compiler-rt] [llvm] [flang] [clang-tools-extra] [Bazel][Clang Tidy] Include builtin headers with clang-tidy (PR #67626)

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jathu wrote:

@chapuni can you help my understand what you mean by those two suggestions by providing some examples?

> construct the symlink-ed tree for one's convenience

Isn't that what we are doing in this diff? We are producing the symlinked tree for the tool.

https://github.com/llvm/llvm-project/pull/67626