  x Document
   ,-[$DIR/tests/html5lib-tests-fixture/tests6_dat.5.html:1:1]
 1 | <!---x
   : ^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests6_dat.5.html:1:1]
 1 | <!---x
   : ^^^^^^
   `----
  x Comment
   ,-[$DIR/tests/html5lib-tests-fixture/tests6_dat.5.html:1:1]
 1 | <!---x
   : ^^^^^^
   `----
  x Child
  x Element
