[llvm] [clang] [clang-tools-extra] [compiler-rt] [Profile] Allow profile merging with multiple correlate files. (PR #75957)

[Zequan Wu via cfe-commits]

================
@@ -35,20 +36,32 @@ class InstrProfCorrelator {
   /// correlate.
   enum ProfCorrelatorKind { NONE, DEBUG_INFO, BINARY };
 
+  struct WarningCounter {
----------------
ZequanWu wrote:

Since there is [debate](https://github.com/llvm/llvm-project/pull/75957#discussion_r1433009581) about if this change is necessary at all, let's keep the change here in case we decided it's unnecessary.

https://github.com/llvm/llvm-project/pull/75957