Hydrogenize (and share) StoreField except heapobject (for now).

src/field-index.h

 // 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.
 
 #ifndef V8_FIELD_INDEX_H_
 #define V8_FIELD_INDEX_H_
 
 #include "src/property-details.h"
 #include "src/utils.h"
 
@@ skipping 47 matching lines @@
     DCHECK(!IsHiddenField::decode(bit_field_));
     int result = index() - first_inobject_property_offset() / kPointerSize;
     if (!is_inobject()) {
       result += InObjectPropertyBits::decode(bit_field_);
     }
     return result;
   }
 
   int GetKeyedLookupCacheIndex() const;
 
-  int GetLoadFieldStubKey() const {
+  int GetFieldAccessStubKey() const {
     return bit_field_ &
         (IsInObjectBits::kMask | IsDoubleBits::kMask | IndexBits::kMask);
   }
 
  private:
   FieldIndex(bool is_inobject, int local_index, bool is_double,
              int inobject_properties, int first_inobject_property_offset,
              bool is_hidden = false) {
     DCHECK((first_inobject_property_offset & (kPointerSize - 1)) == 0);
     bit_field_ = IsInObjectBits::encode(is_inobject) |
@@ skipping 24 matching lines @@
   class IsHiddenField
       : public BitField<bool, FirstInobjectPropertyOffsetBits::kNext, 1> {};
   STATIC_ASSERT(IsHiddenField::kNext <= 32);
 
   int bit_field_;
 };
 
 } }  // namespace v8::internal
 
 #endif