Add Uint32AddWithOverflow and Uint32SubWithOverflow machine operators.

src/compiler/instruction-selector.h

Index: src/compiler/instruction-selector.h
diff --git a/src/compiler/instruction-selector.h b/src/compiler/instruction-selector.h
index 0958c27a5a076677ad277966fca4f14fac102e64..8c20b65f912cb11c68571b5c060fe0731386c2e3 100644
--- a/src/compiler/instruction-selector.h
+++ b/src/compiler/instruction-selector.h
@@ -160,9 +160,6 @@ class InstructionSelector V8_FINAL {
   MACHINE_OP_LIST(DECLARE_GENERATOR)
 #undef DECLARE_GENERATOR
 
-  void VisitInt32AddWithOverflow(Node* node, FlagsContinuation* cont);
-  void VisitInt32SubWithOverflow(Node* node, FlagsContinuation* cont);
-
   void VisitWord32Test(Node* node, FlagsContinuation* cont);
   void VisitWord64Test(Node* node, FlagsContinuation* cont);
   void VisitWord32Compare(Node* node, FlagsContinuation* cont);
@@ -173,10 +170,10 @@ class InstructionSelector V8_FINAL {
   void VisitPhi(Node* node);
   void VisitProjection(Node* node);
   void VisitConstant(Node* node);
+  void VisitBranch(Node* input, BasicBlock* tbranch, BasicBlock* fbranch);
   void VisitCall(Node* call, BasicBlock* continuation,
                  BasicBlock* deoptimization);
   void VisitGoto(BasicBlock* target);
-  void VisitBranch(Node* input, BasicBlock* tbranch, BasicBlock* fbranch);
   void VisitReturn(Node* value);
   void VisitThrow(Node* value);
   void VisitDeoptimize(Node* deopt);