[llvm] [Windows] Fix Registry static data members not exported by extract_symbols.py in static builds with plugin support (PR #163391)

[John Brawn via llvm-commits]

https://github.com/john-brawn-arm requested changes to this pull request.

Adjusting extract_symbols.py seems like a reasonable way of fixing this, as hopefully once https://github.com/llvm/llvm-project/issues/109483 is finished we can get rid of extract_symbols.py and not have to worry about this kind of thing,

https://github.com/llvm/llvm-project/pull/163391