[libc-commits] [libc] [libc] Replace `MutexLock` with `cpp::lock_guard` (PR #89340)

[Nick Desaulniers via libc-commits]

================
@@ -0,0 +1,47 @@
+//===--- A simple lock_guard implementation ---------------------*- C++ -*-===//
----------------
nickdesaulniers wrote:

```suggestion
//===--- self contained equivalent of std:: mutex.h ---------------------*- C++ -*-===//
```
(may need to adjust line length)

https://github.com/llvm/llvm-project/pull/89340