Remove JSBuiltinsObject.

test/cctest/test-api.cc

Index: test/cctest/test-api.cc
diff --git a/test/cctest/test-api.cc b/test/cctest/test-api.cc
index 0a5c28c7be0ba6530b2056f49632af7dc1b2fd71..703df5d08b568706eeb66588d3bbf49fb93225f5 100644
--- a/test/cctest/test-api.cc
+++ b/test/cctest/test-api.cc
@@ -11656,7 +11656,13 @@ 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;
 }