Fix issue http://code.google.com/p/v8/issues/detail?id=32...

src/ic.h

 // Copyright 2006-2008 Google Inc. All Rights Reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 165 matching lines @@
                        int argc,
                        const ExternalReference& f);
 
   // Update the inline cache and the global stub cache based on the
   // lookup result.
   void UpdateCaches(LookupResult* lookup,
                     State state,
                     Handle<Object> object,
                     Handle<String> name);
 
+  // Returns a JSFunction if the object can be called as a function,
+  // patches the stack to be ready for the call.

[Kasper Lund, 2008/09/08 05:27:21]

and patches...

+  // Otherwise, it returns the undefined value.
+  Object* TryCallAsFunction(Object* object);
+
   static void Clear(Address address, Code* target);
   friend class IC;
 };
 
 
 class LoadIC: public IC {
  public:
   LoadIC() : IC(NO_EXTRA_FRAME) { ASSERT(target()->is_load_stub()); }
 
   Object* Load(State state, Handle<Object> object, Handle<String> name);
@@ skipping 151 matching lines @@
   }
 
   static void Clear(Address address, Code* target);
   friend class IC;
 };
 
 
 } }  // namespace v8::internal
 
 #endif  // V8_IC_H_