[clang] [flang] [llvm] [llvm] annotate remaining LLVM interfaces for DLL export (PR #144746)

[Jakub Kuderski via cfe-commits]

https://github.com/kuhar commented:

Could you break this down into a few smaller PRs? I'm concerned that landing a big patch like this may result in messery reverts that will force uses to recompile almost all of the project.

https://github.com/llvm/llvm-project/pull/144746