[llvm] [llvm] annotate interfaces in llvm/IR for DLL export (PR #141650)

[Andrew Rogers via llvm-commits]

andrurogerz wrote:

Even with the updated `clang-format`, `git clang-format` still adds inappropriate indenting.

I found that if I `clang-format` the file first and commit its unrelated modifications, `git clang-format` behaves nicely. So I am going to put up a patch that `clang-formats` the entire `llvm/LTO/BasicBlock.h` file and will rebase this change on top of it once merged.

https://github.com/llvm/llvm-project/pull/141650