Refactor Maps' code_cache

src/objects.h

 // Copyright 2015 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_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 
 #include "src/assert-scope.h"
@@ skipping 5823 matching lines @@
   // FLAG_unbox_double_fields is disabled (in this case Map does not contain
   // |layout_descriptor| field at all).
   inline LayoutDescriptor* GetLayoutDescriptor();
 
   inline void UpdateDescriptors(DescriptorArray* descriptors,
                                 LayoutDescriptor* layout_descriptor);
   inline void InitializeDescriptors(DescriptorArray* descriptors,
                                     LayoutDescriptor* layout_descriptor);
 
   // [stub cache]: contains stubs compiled for this map.
-  DECL_ACCESSORS(code_cache, Object)
+  DECL_ACCESSORS(code_cache, FixedArray)
 
   // [dependent code]: list of optimized codes that weakly embed this map.
   DECL_ACCESSORS(dependent_code, DependentCode)
 
   // [weak cell cache]: cache that stores a weak cell pointing to this map.
   DECL_ACCESSORS(weak_cell_cache, Object)
 
   inline PropertyDetails GetLastDescriptorDetails();
 
   inline int LastAdded();
@@ skipping 2278 matching lines @@
  public:
   static Handle<CodeCacheHashTable> Put(
       Handle<CodeCacheHashTable> table,
       Handle<Name> name,
       Handle<Code> code);
 
   Code* Lookup(Name* name, Code::Flags flags);
 
   DECLARE_CAST(CodeCacheHashTable)
 
-  // Initial size of the fixed array backing the hash table.
-  static const int kInitialSize = 16;
-
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(CodeCacheHashTable);
 };
 
 
 class TypeFeedbackInfo: public Struct {
  public:
   inline int ic_total_count();
   inline void set_ic_total_count(int count);
 
@@ skipping 2653 matching lines @@
     }
     return value;
   }
 };
 
 
 }  // NOLINT, false-positive due to second-order macros.
 }  // NOLINT, false-positive due to second-order macros.
 
 #endif  // V8_OBJECTS_H_