ocal abstract op -->
  <emu-xref aoid="AbstractOp"></emu-xref>
  <emu-xref aoid="AbstractOp">the AbstractOp abstract operation</emu-xref>

  <!-- refs to es6 abstract op -->
  <emu-xref aoid="ReturnIfAbrupt"></emu-xref>
  <emu-xref aoid="ReturnIfAbrupt">Return if abrupt</emu-xref>

  <!-- refs to examples -->
  <emu-xref href="#example-2"></emu-xref>
  <emu-xref href="#example-1"></emu-xref> <!-- examples in current clause shouldn't include clause name -->
  <emu-xref href="#example-1" title></emu-xref> <!-