LayoutTests/fast/block/float/intrusive-floats-with-reverted-inline-content.html

<style>
div {
  width: 1000px;
}
div::first-letter {
  padding: 550px;
}
img { 
  float: left;
}
</style>
<div>
  PASS
  <img><img><img><img>
  if no crash.
  <span style="padding: 500px;">
    <span style="float: left"></span>
  </span></div>
<script>
if (window.testRunner)
  testRunner.dumpAsText();
</script>