[turbofan] Do not produce 2 ops for Int32AddWithOverflow.

src/compiler/x64/instruction-selector-x64.cc

Index: src/compiler/x64/instruction-selector-x64.cc
diff --git a/src/compiler/x64/instruction-selector-x64.cc b/src/compiler/x64/instruction-selector-x64.cc
index 41208bedb4d203e35a0e790212703984c973cc09..b68d7f76051052f4e9bc701ea7501f6519b6cdd0 100644
--- a/src/compiler/x64/instruction-selector-x64.cc
+++ b/src/compiler/x64/instruction-selector-x64.cc
@@ -1785,7 +1785,7 @@ void InstructionSelector::VisitWord64Equal(Node* const node) {
 void InstructionSelector::VisitInt32AddWithOverflow(Node* node) {
   if (Node* ovf = NodeProperties::FindProjection(node, 1)) {
     FlagsContinuation cont = FlagsContinuation::ForSet(kOverflow, ovf);
-    VisitBinop(this, node, kX64Add32, &cont);
+    return VisitBinop(this, node, kX64Add32, &cont);
   }
   FlagsContinuation cont;
   VisitBinop(this, node, kX64Add32, &cont);