[ast] Simplify NewBoilerplateDescription.

src/factory.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_FACTORY_H_
 #define V8_FACTORY_H_
 
 #include "src/globals.h"
 #include "src/isolate.h"
 #include "src/messages.h"
@@ skipping 34 matching lines @@
       int size,
       PretenureFlag pretenure = NOT_TENURED);
 
   // Allocates an uninitialized fixed array. It must be filled by the caller.
   Handle<FixedArray> NewUninitializedFixedArray(int size);
 
   // Allocates a fixed array for name-value pairs of boilerplate properties and
   // calculates the number of properties we need to store in the backing store.
   Handle<BoilerplateDescription> NewBoilerplateDescription(int boilerplate,
                                                            int all_properties,
+                                                           int index_keys,
                                                            bool has_seen_proto);
 
   // Allocate a new uninitialized fixed double array.
   // The function returns a pre-allocated empty fixed array for capacity = 0,
   // so the return type must be the general fixed array class.
   Handle<FixedArrayBase> NewFixedDoubleArray(
       int size,
       PretenureFlag pretenure = NOT_TENURED);
 
   // Allocate a new fixed double array with hole values.
@@ skipping 757 matching lines @@
   void SetStrictFunctionInstanceDescriptor(Handle<Map> map,
                                            FunctionMode function_mode);
 
   void SetClassFunctionInstanceDescriptor(Handle<Map> map);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_FACTORY_H_