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

[Aaron Ballman via cfe-commits]

https://github.com/AaronBallman commented:

Thanks, I think this is a good compromise! I did have some additional test coverage, and I'd appreciate additional eyes from @zmodem and @MaskRay, especially regarding the compiler options.

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