Create optimized inline versions of Map and Set initialization

src/objects.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_OBJECTS_H_
 #define V8_OBJECTS_H_
 
 #include <iosfwd>
 
 #include "src/allocation.h"
@@ skipping 3904 matching lines @@
   static const int kNumberOfElementsIndex = kNumberOfBucketsIndex + 1;
   static const int kNumberOfDeletedElementsIndex = kNumberOfElementsIndex + 1;
   static const int kHashTableStartIndex = kNumberOfDeletedElementsIndex + 1;
 
   static const int kNumberOfBucketsOffset =
       kHeaderSize + kNumberOfBucketsIndex * kPointerSize;
   static const int kNumberOfElementsOffset =
       kHeaderSize + kNumberOfElementsIndex * kPointerSize;
   static const int kNumberOfDeletedElementsOffset =
       kHeaderSize + kNumberOfDeletedElementsIndex * kPointerSize;
+  static const int kHashTableStartOffset =
+      kHeaderSize + kHashTableStartIndex * kPointerSize;
 
   static const int kEntrySize = entrysize + 1;
   static const int kChainOffset = entrysize;
 
   static const int kLoadFactor = 2;
 
  private:
   static Handle<Derived> Rehash(Handle<Derived> table, int new_capacity);
 
   void SetNumberOfBuckets(int num) {
@@ skipping 7075 matching lines @@
     } else {
       value &= ~(1 << bit_position);
     }
     return value;
   }
 };
 
 } }  // namespace v8::internal
 
 #endif  // V8_OBJECTS_H_