[turbofan] Introduce TruncateTaggedToWord32 simplified operator.

src/compiler/effect-control-linearizer.cc

Index: src/compiler/effect-control-linearizer.cc
diff --git a/src/compiler/effect-control-linearizer.cc b/src/compiler/effect-control-linearizer.cc
index 4215dd22b3a3e5264564e1b027d11d7a3203828a..ec21247bfc8c30d5b8a6efb5c794c5cd41e2c51f 100644
--- a/src/compiler/effect-control-linearizer.cc
+++ b/src/compiler/effect-control-linearizer.cc
@@ -293,8 +293,7 @@ EffectControlLinearizer::LowerChangeFloat64ToTagged(Node* node, Node* effect,
                                                     Node* control) {
   Node* value = node->InputAt(0);
 
-  Node* value32 = graph()->NewNode(
-      machine()->TruncateFloat64ToInt32(TruncationMode::kRoundToZero), value);
+  Node* value32 = graph()->NewNode(machine()->RoundFloat64ToInt32(), value);
   Node* check_same = graph()->NewNode(
       machine()->Float64Equal(), value,
       graph()->NewNode(machine()->ChangeInt32ToFloat64(), value32));