[turbofan] Refactor JSInliner to be a Reducer.

src/compiler/pipeline.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/pipeline.h"
 
 #include <fstream>  // NOLINT(readability/streams)
 #include <sstream>
 
 #include "src/base/platform/elapsed-timer.h"
@@ skipping 449 matching lines @@
 };
 
 
 struct InliningPhase {
   static const char* phase_name() { return "inlining"; }
 
   void Run(PipelineData* data, Zone* temp_zone) {
     SourcePositionTable::Scope pos(data->source_positions(),
                                    SourcePosition::Unknown());
     JSInliner inliner(temp_zone, data->info(), data->jsgraph());
-    inliner.Inline();
+    GraphReducer graph_reducer(data->graph(), temp_zone);
+    AddReducer(data, &graph_reducer, &inliner);
+    graph_reducer.ReduceGraph();
   }
 };
 
 
 struct TyperPhase {
   static const char* phase_name() { return "typer"; }
 
   void Run(PipelineData* data, Zone* temp_zone) { data->typer()->Run(); }
 };
 
@@ skipping 711 matching lines @@
 
   if (FLAG_trace_turbo && !data->MayHaveUnverifiableGraph()) {
     TurboCfgFile tcf(data->isolate());
     tcf << AsC1VAllocator("CodeGen", data->register_allocator());
   }
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8