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<head>
<title>This tests that we compute expansion opportunities properly.</title>
<script>
if (window.testRunner)
    testRunner.dumpAsText();
</script>
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:first-letter, * {
    white-space: pre-wrap;
}

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<body>
Pass if no assert in Debug.
<ruby>aa
    <rt>  </rt>
</ruby>
</body>
</html>
