[clang] [llvm] [clang] Introduce target-specific `Sema` components (PR #93179)

[Nikita Popov via llvm-commits]

nikic wrote:

> I wonder if compile-time regressions come from new translation units I add, because they definitely include stuff.

Yes, I believe that is the primary contributor. You can see the per-file breakdown here: https://llvm-compile-time-tracker.com/compare_clang.php?from=59e2a6b08f3e40afea87da3838ba69e1e15b6672&to=8aa80199751b0cd6631d057b0bfb21584acb206f&stat=instructions%3Au&sortBy=absolute-difference

https://github.com/llvm/llvm-project/pull/93179