[clang] [clang-cl] [Sema] Support MSVC non-const lvalue to user-defined temporary reference (PR #99833)

[Roger Sanders via cfe-commits]

RogerSanders wrote:

I'd like to see this change make it into the repo, as I'm in a similar situation with a 6+ million line codebase. What's the next steps to advance this?

https://github.com/llvm/llvm-project/pull/99833