[turbofan] split compilation stats off from HStatistics and track high water marks

src/hydrogen.h

 // Copyright 2012 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_HYDROGEN_H_
 #define V8_HYDROGEN_H_
 
 #include "src/v8.h"
 
 #include "src/accessors.h"
@@ skipping 2742 matching lines @@
 class HStatistics FINAL: public Malloced {
  public:
   HStatistics()
       : times_(5),
         names_(5),
         sizes_(5),
         total_size_(0),
         source_size_(0) { }
 
   void Initialize(CompilationInfo* info);
-  void Print(const char* stats_name);
+  void Print();
   void SaveTiming(const char* name, base::TimeDelta time, unsigned size);
 
   void IncrementFullCodeGen(base::TimeDelta full_code_gen) {
     full_code_gen_ += full_code_gen;
   }
 
   void IncrementCreateGraph(base::TimeDelta delta) { create_graph_ += delta; }
 
   void IncrementOptimizeGraph(base::TimeDelta delta) {
     optimize_graph_ += delta;
@@ skipping 136 matching lines @@
   }
 
  private:
   HGraphBuilder* builder_;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_HYDROGEN_H_