[turbofan] Refactor escape analysis to only expose one class.

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/adapters.h"
@@ skipping 634 matching lines @@
     AddReducer(data, &graph_reducer, &dead_code_elimination);
     graph_reducer.ReduceGraph();
   }
 };
 
 
 struct EscapeAnalysisPhase {
   static const char* phase_name() { return "escape analysis"; }
 
   void Run(PipelineData* data, Zone* temp_zone) {
-    EscapeObjectAnalysis escape_analysis(data->graph(),
-                                         data->jsgraph()->common(), temp_zone);
+    EscapeAnalysis escape_analysis(data->graph(), data->jsgraph()->common(),
+                                   temp_zone);
     escape_analysis.Run();
-    EscapeStatusAnalysis escape_status(&escape_analysis, data->graph(),
-                                       temp_zone);
-    escape_status.Run();
     JSGraphReducer graph_reducer(data->jsgraph(), temp_zone);
     EscapeAnalysisReducer escape_reducer(&graph_reducer, data->jsgraph(),
-                                         &escape_status, &escape_analysis,
-                                         temp_zone);
+                                         &escape_analysis, temp_zone);
     AddReducer(data, &graph_reducer, &escape_reducer);
     graph_reducer.ReduceGraph();
   }
 };
 
 
 struct SimplifiedLoweringPhase {
   static const char* phase_name() { return "simplified lowering"; }
 
   void Run(PipelineData* data, Zone* temp_zone) {
@@ skipping 803 matching lines @@
     tcf << AsC1VRegisterAllocationData("CodeGen",
                                        data->register_allocation_data());
   }
 
   data->DeleteRegisterAllocationZone();
 }
 
 }  // namespace compiler
 }  // namespace internal
 }  // namespace v8