  x Document
   ,-[$DIR/tests/html5lib-tests-fixture/comments01_dat.5.html:1:1]
 1 | FOO<!-- BAR -- <QUX> -- MUX -->BAZ
   : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Child
  x Element
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/comments01_dat.5.html:1:1]
 1 | FOO<!-- BAR -- <QUX> -- MUX -->BAZ
   : ^^^
   `----
  x Text
   ,-[$DIR/tests/html5lib-tests-fixture/comments01_dat.5.html:1:1]
 1 | FOO<!-- BAR -- <QUX> -- MUX -->BAZ
   : ^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/comments01_dat.5.html:1:1]
 1 | FOO<!-- BAR -- <QUX> -- MUX -->BAZ
   :    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Comment
   ,-[$DIR/tests/html5lib-tests-fixture/comments01_dat.5.html:1:1]
 1 | FOO<!-- BAR -- <QUX> -- MUX -->BAZ
   :    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/comments01_dat.5.html:1:1]
 1 | FOO<!-- BAR -- <QUX> -- MUX -->BAZ
   :                                ^^^
   `----
  x Text
   ,-[$DIR/tests/html5lib-tests-fixture/comments01_dat.5.html:1:1]
 1 | FOO<!-- BAR -- <QUX> -- MUX -->BAZ
   :                                ^^^
   `----
