[llvm] [SampleFDO] Stale profile renaming matching (PR #92151)

[via llvm-commits]

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@@ -20,12 +20,22 @@ using namespace sampleprof;
 
 #define DEBUG_TYPE "sample-profile-matcher"
 
+static cl::opt<bool> SalvageFunctionRenaming(
+    "salvage-function-renaming", cl::Hidden, cl::init(false),
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WenleiHe wrote:

nit: `salvage-renamed-profile` to be consistent with `salvage-stale-profile`

https://github.com/llvm/llvm-project/pull/92151