[clang] [APINotes] Introduce APINotes in Clang Sema and Frontend (PR #72907)

llvmbot wrote: @llvm/pr-subscribers-clang Author: Egor Zhdan (egorzhdan) Changes This upstreams more of the Clang API Notes functionality that is currently implemented in the Apple fork: https://github.com/apple/llvm-project/tree/next/clang/lib/APINotes This adds the initial Clang APINo

[clang] [APINotes] Introduce APINotes in Clang Sema and Frontend (PR #72907)

https://github.com/egorzhdan created https://github.com/llvm/llvm-project/pull/72907 This upstreams more of the Clang API Notes functionality that is currently implemented in the Apple fork: https://github.com/apple/llvm-project/tree/next/clang/lib/APINotes This adds the initial Clang APINote