[turbofan] Prevent storing signalling NaNs into holey double arrays.

src/compiler/simplified-operator.h

Index: src/compiler/simplified-operator.h
diff --git a/src/compiler/simplified-operator.h b/src/compiler/simplified-operator.h
index 141e98e9595b6c81c0abe613c2c8dc17a8b7d40c..3318afef4afafed081cb1757a761c6df45351d10 100644
--- a/src/compiler/simplified-operator.h
+++ b/src/compiler/simplified-operator.h
@@ -162,6 +162,8 @@ class SimplifiedOperatorBuilder final : public ZoneObject {
   const Operator* NumberToUint32();
   const Operator* NumberIsHoleNaN();
 
+  const Operator* NumberSilenceNaN();
+
   const Operator* SpeculativeNumberAdd(BinaryOperationHints::Hint hint);
   const Operator* SpeculativeNumberSubtract(BinaryOperationHints::Hint hint);