Minor cleanup and optimisation of element methods.

src/objects.cc

 // Copyright 2012 the V8 project authors. 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 3300 matching lines @@
     if (!isolate->MayIndexedAccess(this, index, v8::ACCESS_HAS)) {
       isolate->ReportFailedAccessCheck(this, v8::ACCESS_HAS);
       return ABSENT;
     }
   }
 
   if (IsJSGlobalProxy()) {
     Object* proto = GetPrototype();
     if (proto->IsNull()) return ABSENT;
     ASSERT(proto->IsJSGlobalObject());
-    return JSReceiver::cast(proto)->GetElementAttributeWithReceiver(
+    return JSObject::cast(proto)->GetElementAttributeWithReceiver(
         receiver, index, continue_search);
   }
 
   // Check for lookup interceptor except when bootstrapping.
   if (HasIndexedInterceptor() && !isolate->bootstrapper()->IsActive()) {
     return GetElementAttributeWithInterceptor(receiver, index, continue_search);
   }
 
   return GetElementAttributeWithoutInterceptor(
       receiver, index, continue_search);
@@ skipping 10528 matching lines @@
   set_year(Smi::FromInt(year), SKIP_WRITE_BARRIER);
   set_month(Smi::FromInt(month), SKIP_WRITE_BARRIER);
   set_day(Smi::FromInt(day), SKIP_WRITE_BARRIER);
   set_weekday(Smi::FromInt(weekday), SKIP_WRITE_BARRIER);
   set_hour(Smi::FromInt(hour), SKIP_WRITE_BARRIER);
   set_min(Smi::FromInt(min), SKIP_WRITE_BARRIER);
   set_sec(Smi::FromInt(sec), SKIP_WRITE_BARRIER);
 }
 
 } }  // namespace v8::internal