[turbofan] Introduce JSToInteger and JSToLength operators.

src/compiler/verifier.cc

 // Copyright 2014 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/compiler/verifier.h"
 
 #include <algorithm>
 #include <deque>
 #include <queue>
 #include <sstream>
@@ skipping 474 matching lines @@
     case IrOpcode::kJSDivide:
     case IrOpcode::kJSModulus:
       // Type is Number.
       CheckUpperIs(node, Type::Number());
       break;
 
     case IrOpcode::kJSToBoolean:
       // Type is Boolean.
       CheckUpperIs(node, Type::Boolean());
       break;
+    case IrOpcode::kJSToInteger:
+      // Type is OrderedNumber.
+      CheckUpperIs(node, Type::OrderedNumber());
+      break;
+    case IrOpcode::kJSToLength:
+      // Type is OrderedNumber.
+      CheckUpperIs(node, Type::OrderedNumber());
+      break;
+    case IrOpcode::kJSToName:
+      // Type is Name.
+      CheckUpperIs(node, Type::Name());
+      break;
     case IrOpcode::kJSToNumber:
       // Type is Number.
       CheckUpperIs(node, Type::Number());
       break;
     case IrOpcode::kJSToString:
       // Type is String.
       CheckUpperIs(node, Type::String());
       break;
-    case IrOpcode::kJSToName:
-      // Type is Name.
-      CheckUpperIs(node, Type::Name());
-      break;
     case IrOpcode::kJSToObject:
       // Type is Receiver.
       CheckUpperIs(node, Type::Receiver());
       break;
 
     case IrOpcode::kJSCreate:
       // Type is Object.
       CheckUpperIs(node, Type::Object());
       break;
     case IrOpcode::kJSCreateArguments:
@@ skipping 777 matching lines @@
          replacement->op()->EffectOutputCount() > 0);
   DCHECK(!NodeProperties::IsFrameStateEdge(edge) ||
          replacement->opcode() == IrOpcode::kFrameState);
 }
 
 #endif  // DEBUG
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8