Are Job's seven sons and three daughters in Heaven?

At the end of Job, God blessed him and gave him twice as much as he had in the first part of his life but he still has seven sons and three daughters. Is it a common interpretation that his first seven sons and three daughters who were killed are alive in heaven? This would be twice as much--fourteen sons and six daughters. What are other interpretations from groups that would find the former interpretation unacceptable?