[turbofan] Remove usage of Unique<T> from graph.

src/compiler/js-type-feedback-lowering.cc

 // Copyright 2015 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/js-type-feedback-lowering.h"
 
 #include "src/compiler/access-builder.h"
 #include "src/compiler/js-graph.h"
 #include "src/compiler/node-properties.h"
 
@@ skipping 25 matching lines @@
   Node* receiver = NodeProperties::GetValueInput(node, 0);
   Type* receiver_type = NodeProperties::GetBounds(receiver).upper;
   Node* frame_state = NodeProperties::GetFrameStateInput(node, 1);
   Node* effect = NodeProperties::GetEffectInput(node);
   Node* control = NodeProperties::GetControlInput(node);
   // We need to make optimistic assumptions to continue.
   if (!(flags() & kDeoptimizationEnabled)) return NoChange();
   LoadNamedParameters const& p = LoadNamedParametersOf(node->op());
   Handle<TypeFeedbackVector> vector;
   if (!p.feedback().vector().ToHandle(&vector)) return NoChange();
-  if (p.name().handle().is_identical_to(factory()->length_string())) {
+  if (p.name().is_identical_to(factory()->length_string())) {
     LoadICNexus nexus(vector, p.feedback().slot());
     MapHandleList maps;
     if (nexus.ExtractMaps(&maps) > 0) {
       for (Handle<Map> map : maps) {
         if (map->instance_type() >= FIRST_NONSTRING_TYPE) return NoChange();
       }
       // Optimistic optimization for "length" property of strings.
       if (receiver_type->Maybe(Type::TaggedSigned())) {
         Node* check = graph()->NewNode(simplified()->ObjectIsSmi(), receiver);
         Node* branch = graph()->NewNode(common()->Branch(BranchHint::kFalse),
@@ skipping 52 matching lines @@
 }
 
 
 MachineOperatorBuilder* JSTypeFeedbackLowering::machine() const {
   return jsgraph()->machine();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8