[llvm-branch-commits] [libc] [libcxx] [libcxxabi] [libunwind] [llvm] [pstl] Revise IDE folder structure (PR #89755)

[Louis Dionne via llvm-branch-commits]

https://github.com/ldionne approved this pull request.

LGTM. After checking, I think this only impacts `add_lit_testsuites` since we don't use many other things from `AddLLVM.cmake` in the runtimes.

https://github.com/llvm/llvm-project/pull/89755