[clang] [llvm] Update llvm::Registry to work for LLVM shared library builds on windows (PR #109024)

[Thomas Fransham via cfe-commits]

fsfod wrote:

@AaronBallman I've added some missing extern template entries for Clang. clang-tools-extra also needs some idk if you ok adding them to this PR as well.

https://github.com/llvm/llvm-project/pull/109024