LayoutTests/fast/block/line-layout/non-empty-inline-block-with-zero-height.html

<style>
div {
  font-family: Ahem;
  font-size: 20px;
}

span {
  display: inline-block;
  height: 0px;
  font-size: 50px;
}
</style>
<div><span>XXX</span></div>