[turbofan] Inline the allocation fast path.

src/compiler/change-lowering.h

 // 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.
 
 #ifndef V8_COMPILER_CHANGE_LOWERING_H_
 #define V8_COMPILER_CHANGE_LOWERING_H_
 
 #include "src/compiler/graph-reducer.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
 // Forward declarations.
 class CommonOperatorBuilder;
 struct ElementAccess;
 class JSGraph;
 class Linkage;
 class MachineOperatorBuilder;
 class Operator;
 
-class ChangeLowering final : public Reducer {
+class ChangeLowering final : public AdvancedReducer {
  public:
-  explicit ChangeLowering(JSGraph* jsgraph) : jsgraph_(jsgraph) {}
+  ChangeLowering(Editor* editor, JSGraph* jsgraph)
+      : AdvancedReducer(editor), jsgraph_(jsgraph) {}
   ~ChangeLowering() final;
 
   Reduction Reduce(Node* node) final;
 
  private:
   Reduction ReduceLoadField(Node* node);
   Reduction ReduceStoreField(Node* node);
   Reduction ReduceLoadElement(Node* node);
   Reduction ReduceStoreElement(Node* node);
   Reduction ReduceAllocate(Node* node);
 
   Node* ComputeIndex(const ElementAccess& access, Node* const key);
   Graph* graph() const;
   Isolate* isolate() const;
   JSGraph* jsgraph() const { return jsgraph_; }
   CommonOperatorBuilder* common() const;
   MachineOperatorBuilder* machine() const;
 
   JSGraph* const jsgraph_;
   SetOncePointer<const Operator> allocate_operator_;
 };
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_COMPILER_CHANGE_LOWERING_H_