[clang] [llvm] Add support for Windows Secure Hot-Patching (redo) (PR #145565)

[Alexandre Ganea via cfe-commits]

aganea wrote:

> Both the original patch and the redo break the [Solaris/amd64 buildbot](https://lab.llvm.org/staging/#/builders/120/builds/9897). I wonder if somehow the fact that the source lives in `/opt/llvm-buildbot` somehow interferes with Windows command line parsing?

Yes, the files names in the tests have to come after hyphens (—) otherwise they can be treated like flags on some systems, here on Solaris or on MacOS. @dpaoliello @sivadeilra 

https://github.com/llvm/llvm-project/pull/145565