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

[Aaron Ballman via cfe-commits]

================
@@ -5821,3 +5821,33 @@ specify the starting offset to begin embedding from. The resources is treated
 as being empty if the specified offset is larger than the number of bytes in
 the resource. The offset will be applied *before* any ``limit`` parameters are
 applied.
+
+MSVC Extensions
+===============
+
+Clang supports a number of extensions inorder to imitate MSVC.
----------------
AaronBallman wrote:

```suggestion
Clang supports a number of extensions in order to imitate MSVC.
```

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