Split HPhase for Lithium and Hydrogen using common CompilationPhase base.

src/hydrogen.h

Index: src/hydrogen.h
diff --git a/src/hydrogen.h b/src/hydrogen.h
index 6a49e5708de953eb5cb74e88906afe9526c18b79..908c3b77412009b901f8755f3ace40fc54435945 100644
--- a/src/hydrogen.h
+++ b/src/hydrogen.h
@@ -1923,6 +1923,10 @@ class HStatistics: public Malloced {
   void Print();
   void SaveTiming(const char* name, int64_t ticks, unsigned size);
 
+  void IncrementFullCodeGen(int64_t full_code_gen) {
+    full_code_gen_ += full_code_gen;
+  }
+
   void IncrementSubtotals(int64_t create_graph,
                           int64_t optimize_graph,
                           int64_t generate_code) {
@@ -1944,32 +1948,13 @@ class HStatistics: public Malloced {
 };
 
 
-class HPhase BASE_EMBEDDED {
+class HPhase : public CompilationPhase {
  public:
-  static const char* const kFullCodeGen;
-
-  HPhase(const char* name, Isolate* isolate, Zone* zone);
   HPhase(const char* name, HGraph* graph);
-  HPhase(const char* name, LChunk* chunk);
-  HPhase(const char* name, LAllocator* allocator);
   ~HPhase();
 
  private:
-  void Init(Isolate* isolate,
-            const char* name,
-            Zone* zone,
-            HGraph* graph,
-            LChunk* chunk,
-            LAllocator* allocator);
-
-  Isolate* isolate_;
-  const char* name_;
-  Zone* zone_;
   HGraph* graph_;
-  LChunk* chunk_;
-  LAllocator* allocator_;
-  int64_t start_ticks_;
-  unsigned start_allocation_size_;
 };