[turbofan] Introduce CheckedInt32Div and CheckedInt32Mod operators.

src/compiler/representation-change.cc

Index: src/compiler/representation-change.cc
diff --git a/src/compiler/representation-change.cc b/src/compiler/representation-change.cc
index 41a98e17dc8b08362c45d671929e94edf71b931a..932db0afe853641a293ee5134e81012afca1bc96 100644
--- a/src/compiler/representation-change.cc
+++ b/src/compiler/representation-change.cc
@@ -614,10 +614,14 @@ const Operator* RepresentationChanger::Int32OperatorFor(
 const Operator* RepresentationChanger::Int32OverflowOperatorFor(
     IrOpcode::Value opcode) {
   switch (opcode) {
-    case IrOpcode::kSpeculativeNumberAdd:  // Fall through.
+    case IrOpcode::kSpeculativeNumberAdd:
       return simplified()->CheckedInt32Add();
-    case IrOpcode::kSpeculativeNumberSubtract:  // Fall through.
+    case IrOpcode::kSpeculativeNumberSubtract:
       return simplified()->CheckedInt32Sub();
+    case IrOpcode::kSpeculativeNumberDivide:
+      return simplified()->CheckedInt32Div();
+    case IrOpcode::kSpeculativeNumberModulus:
+      return simplified()->CheckedInt32Mod();
     default:
       UNREACHABLE();
       return nullptr;