Remove JSBuiltinsObject.

test/cctest/test-api.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 11638 matching lines @@
                                       "})();");
     CHECK_EQ(42, script->Run()->Int32Value());
   }
 }
 
 
 static int GetGlobalObjectsCount() {
   int count = 0;
   i::HeapIterator it(CcTest::heap());
   for (i::HeapObject* object = it.next(); object != NULL; object = it.next())
-    if (object->IsJSGlobalObject()) count++;
+    if (object->IsJSGlobalObject()) {
+      i::JSGlobalObject* g = i::JSGlobalObject::cast(object);
+      // Skip dummy global object.
+      if (i::GlobalDictionary::cast(g->properties())->NumberOfElements() != 0) {
+        count++;
+      }
+    }
   // Subtract one to compensate for the code stub context that is always present
   return count - 1;
 }
 
 
 static void CheckSurvivingGlobalObjectsCount(int expected) {
   // We need to collect all garbage twice to be sure that everything
   // has been collected.  This is because inline caches are cleared in
   // the first garbage collection but some of the maps have already
   // been marked at that point.  Therefore some of the maps are not
@@ skipping 10286 matching lines @@
     env2->Global()->Set(v8_str("obj2"), object2);
     ExpectString("typeof obj2.values", "function");
     CHECK_NE(*object->Get(v8_str("values")), *object2->Get(v8_str("values")));
 
     auto values2 = Local<Function>::Cast(object2->Get(v8_str("values")));
     auto fn2 = i::Handle<i::JSFunction>::cast(v8::Utils::OpenHandle(*values2));
     auto ctx2 = v8::Utils::OpenHandle(*env2.local());
     CHECK_EQ(fn2->GetCreationContext(), *ctx2);
   }
 }