[turbofan] Turn JSContextSpecializer into an AdvancedReducer.

src/compiler/js-context-specialization.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_JS_CONTEXT_SPECIALIZATION_H_
 #define V8_COMPILER_JS_CONTEXT_SPECIALIZATION_H_
 
 #include "src/compiler/graph-reducer.h"
 #include "src/compiler/js-graph.h"
 #include "src/contexts.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
 // Specializes a given JSGraph to a given context, potentially constant folding
 // some {LoadContext} nodes or strength reducing some {StoreContext} nodes.
-class JSContextSpecializer : public Reducer {
+class JSContextSpecializer : public AdvancedReducer {
  public:
-  explicit JSContextSpecializer(JSGraph* jsgraph) : jsgraph_(jsgraph) {}
+  JSContextSpecializer(Editor* editor, JSGraph* jsgraph)
+      : AdvancedReducer(editor), jsgraph_(jsgraph) {}
 
   Reduction Reduce(Node* node) override;
 
   // Visible for unit testing.
   Reduction ReduceJSLoadContext(Node* node);
   Reduction ReduceJSStoreContext(Node* node);
 
  private:
   JSGraph* jsgraph_;
 };
 }
 }
 }  // namespace v8::internal::compiler
 
 #endif  // V8_COMPILER_JS_CONTEXT_SPECIALIZATION_H_