[llvm] [Analysis] Provide inlined `AnalysisKey` in `AnalysisInfoMixin` (PR #116046)

[Saleem Abdulrasool via llvm-commits]

https://github.com/compnerd commented:

A local build in DLL mode would definitely be good to run against the minimum supported VS (which I believe is 2019).

If that compiler is able to deal with this properly, addressing this makes sense. I do wonder if this is going to break any out-of-tree analysis passes though due to the redeclaration.

https://github.com/llvm/llvm-project/pull/116046