Fix JSFunction's in-object properties initialization.

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/isolate.h"
 #include "src/messages.h"
 #include "src/type-feedback-vector.h"
@@ skipping 677 matching lines @@
   // Creates a code object that is not yet fully initialized yet.
   inline Handle<Code> NewCodeRaw(int object_size, bool immovable);
 
   // Attempt to find the number in a small cache.  If we finds it, return
   // the string representation of the number.  Otherwise return undefined.
   Handle<Object> GetNumberStringCache(Handle<Object> number);
 
   // Update the cache with a new number-string pair.
   void SetNumberStringCache(Handle<Object> number, Handle<String> string);
 
-  // Initializes a function with a shared part and prototype.
-  // Note: this code was factored out of NewFunction such that other parts of
-  // the VM could use it. Specifically, a function that creates instances of
-  // type JS_FUNCTION_TYPE benefit from the use of this function.
-  inline void InitializeFunction(Handle<JSFunction> function,
-                                 Handle<SharedFunctionInfo> info,
-                                 Handle<Context> context);
-
   // Creates a function initialized with a shared part.
   Handle<JSFunction> NewFunction(Handle<Map> map,
                                  Handle<SharedFunctionInfo> info,
                                  Handle<Context> context,
                                  PretenureFlag pretenure = TENURED);
 
   Handle<JSFunction> NewFunction(Handle<Map> map,
                                  Handle<String> name,
                                  MaybeHandle<Code> maybe_code);
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_FACTORY_H_