[runtime] Add DescriptorArray::GeneralizeAllFields().

src/map-updater.h

 // Copyright 2017 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_MAP_RECONFIGURER_H_
 #define V8_MAP_RECONFIGURER_H_
 
 #include "src/elements-kind.h"
 #include "src/globals.h"
 #include "src/handles.h"
@@ skipping 90 matching lines @@
   // - If |target_map| == |split_map|, |target_map| is in the expected state.
   //   Return it.
   // - Otherwise, invalidate the outdated transition target from |target_map|,
   //   and replace its transition tree with a new branch for the updated
   //   descriptors.
   State ConstructNewMap();
 
   // When a requested reconfiguration can not be done the result is a copy
   // of |old_map_| where every field has |Tagged| representation and |Any|
   // field type. This map is disconnected from the transition tree.
-  State CopyGeneralizeAllRepresentations(const char* reason);
+  State CopyGeneralizeAllFields(const char* reason);
 
   // Returns name of a |descriptor| property.
   inline Name* GetKey(int descriptor) const;
 
   // Returns property details of a |descriptor| in "updated" |old_descrtiptors_|
   // array.
   inline PropertyDetails GetDetails(int descriptor) const;
 
   // Returns value of a |descriptor| with kDescriptor location in "updated"
   // |old_descrtiptors_| array.
@@ skipping 42 matching lines @@
   Handle<FieldType> new_field_type_;
 
   // Data specific to kDescriptor location.
   Handle<Object> new_value_;
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_MAP_RECONFIGURER_H_