[clang] [Profile] Refactor profile correlation. (PR #69656)

[Ellis Hoag via cfe-commits]

================
@@ -24,15 +24,37 @@
 
 using namespace llvm;
 
-/// Get the __llvm_prf_cnts section.
-Expected<object::SectionRef> getCountersSection(const object::ObjectFile &Obj) {
+namespace llvm {
+// Deprecated. Use -profile-correlate=debug-info.
+cl::opt<bool>
+    DebugInfoCorrelate("profile-correlate=debug-info",
----------------
ellishg wrote:

```suggestion
    DebugInfoCorrelate("debug-info-correlate",
```
I think you meant to keep `-debug-info-correlate` unchanged. Also, please add the deprecated comment to the help message.

Maybe after the next LLVM release we can remove this flag. This will allow us and others to easily migrate to the new flag.

https://github.com/llvm/llvm-project/pull/69656