[llvm] [llvm] prepare explicit template instantiations in llvm/DebugInfo for DLL export annotations (PR #140785)

[Andrew Rogers via llvm-commits]

andrurogerz wrote:

> why do these templates have to be exposed? 

Yeah, good question. They are only referenced by the unit tests for this library (DebugInfoCodeViewTests). It wasn't needed for Windows DLL, just for so/dylib builds with hidden visibility. But I think I actually have a simpler solution that doesn't require these declarations in the header.

https://github.com/llvm/llvm-project/pull/140785