  x Document
   ,-[$DIR/tests/html5lib-tests-fixture/tests15_dat.4.html:1:1]
 1 | <html></html><!-- foo -->
   : ^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests15_dat.4.html:1:1]
 1 | <html></html><!-- foo -->
   : ^^^^^^^^^^^^^
   `----
  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/tests15_dat.4.html:1:1]
 1 | <html></html><!-- foo -->
   : ^^^^^^^^^^^^^
   `----
  x Child
  x Element
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/tests15_dat.4.html:1:1]
 1 | <html></html><!-- foo -->
   :              ^^^^^^^^^^^^
   `----
  x Comment
   ,-[$DIR/tests/html5lib-tests-fixture/tests15_dat.4.html:1:1]
 1 | <html></html><!-- foo -->
   :              ^^^^^^^^^^^^
   `----
