[clang] [llvm] [Clang][AIX] Add -mloadtime-comment-vars flag to preserve identifying variables (PR #187986)

[Hubert Tong via cfe-commits]

================
@@ -21,6 +21,7 @@
 #include "clang/AST/DeclObjC.h"
 #include "clang/AST/Expr.h"
 #include "clang/AST/ExprCXX.h"
+#include "clang/AST/Mangle.h"
----------------
hubert-reinterpretcast wrote:

Stray change from older revision?
```suggestion
```

https://github.com/llvm/llvm-project/pull/187986