[clang] [ubsan] Connect -fsanitize-skip-hot-cutoff to LowerAllowCheckPass<cutoffs> (PR #124857)

[Vitaly Buka via cfe-commits]

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@@ -795,12 +795,30 @@ static void addSanitizers(const Triple &TargetTriple,
     PB.registerOptimizerLastEPCallback(SanitizersCallback);
   }
 
-  if (LowerAllowCheckPass::IsRequested()) {
+  // SanitizeSkipHotCutoffs: doubles with range [0, 1]
+  // Opts.cutoffs: ints with range [0, 1000000]
+  std::optional<std::vector<int>> scaledCutoffs =
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vitalybuka wrote:

scaledCutoffs -> ScaledCutoffs

https://github.com/llvm/llvm-project/pull/124857