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

[Andrew Rogers via llvm-commits]

andrurogerz wrote:

@compnerd, @vgvassilev other than the annotations for llvm-c and Demangle libraries, which require new annotation macros, this is the bulk of the remaining annotation code-mod. Please review at your convenience, thanks!

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