[turbofan] Add Int64(Add|Sub)WithOverflow support.

src/compiler/machine-operator.cc

Index: src/compiler/machine-operator.cc
diff --git a/src/compiler/machine-operator.cc b/src/compiler/machine-operator.cc
index 4540d035bbbc7ef77a09ffefeeadcc3b6876bbf7..511a10dd0293d7081e9f9cedcd5f68b4597a9ef0 100644
--- a/src/compiler/machine-operator.cc
+++ b/src/compiler/machine-operator.cc
@@ -128,7 +128,10 @@ CheckedStoreRepresentation CheckedStoreRepresentationOf(Operator const* op) {
   V(Uint32Mod, Operator::kNoProperties, 2, 1, 1)                              \
   V(Uint32MulHigh, Operator::kAssociative | Operator::kCommutative, 2, 0, 1)  \
   V(Int64Add, Operator::kAssociative | Operator::kCommutative, 2, 0, 1)       \
+  V(Int64AddWithOverflow, Operator::kAssociative | Operator::kCommutative, 2, \
+    0, 2)                                                                     \
   V(Int64Sub, Operator::kNoProperties, 2, 0, 1)                               \
+  V(Int64SubWithOverflow, Operator::kNoProperties, 2, 0, 2)                   \
   V(Int64Mul, Operator::kAssociative | Operator::kCommutative, 2, 0, 1)       \
   V(Int64Div, Operator::kNoProperties, 2, 1, 1)                               \
   V(Int64Mod, Operator::kNoProperties, 2, 1, 1)                               \