[runtime] Allocate space for computed property names

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 30 matching lines @@
       int size, PretenureFlag pretenure = NOT_TENURED);
 
   // Allocate a new fixed array with non-existing entries (the hole).
   Handle<FixedArray> NewFixedArrayWithHoles(
       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,
+                                                           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.
   Handle<FixedArrayBase> NewFixedDoubleArrayWithHoles(
       int size,
@@ skipping 750 matching lines @@
   void SetStrictFunctionInstanceDescriptor(Handle<Map> map,
                                            FunctionMode function_mode);
 
   void SetClassFunctionInstanceDescriptor(Handle<Map> map);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_FACTORY_H_