[debug] use catch prediction flag for promise rejections.

src/compiler/common-operator.h

Index: src/compiler/common-operator.h
diff --git a/src/compiler/common-operator.h b/src/compiler/common-operator.h
index 620ca57f90bfb8ab39907a63fdd72eb27edca60c..f6e75a464fa1324d036c610782abdd2f84555119 100644
--- a/src/compiler/common-operator.h
+++ b/src/compiler/common-operator.h
@@ -77,7 +77,14 @@ std::ostream& operator<<(std::ostream&, DeoptimizeParameters p);
 DeoptimizeParameters const& DeoptimizeParametersOf(Operator const* const);
 
 // Prediction whether throw-site is surrounded by any local catch-scope.
-enum class IfExceptionHint { kLocallyUncaught, kLocallyCaught };
+enum class IfExceptionHint {
+  kLocallyUncaught,
+  kLocallyCaught,
+  kLocallyCaughtForPromiseReject
+};
+
+IfExceptionHint ExceptionHintFromCatchPrediction(
+    HandlerTable::CatchPrediction prediction);
 
 size_t hash_value(IfExceptionHint hint);