  x Document
   ,-[$DIR/tests/html5lib-tests-fixture/menuitem-element_dat.9.html:1:1]
 1 | <!DOCTYPE html><menuitem><asdf></menuitem>x
   : ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/menuitem-element_dat.9.html:1:1]
 1 | <!DOCTYPE html><menuitem><asdf></menuitem>x
   : ^^^^^^^^^^^^^^^
   `----
  x DocumentType
   ,-[$DIR/tests/html5lib-tests-fixture/menuitem-element_dat.9.html:1:1]
 1 | <!DOCTYPE html><menuitem><asdf></menuitem>x
   : ^^^^^^^^^^^^^^^
   `----
  x Child
  x Element
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/menuitem-element_dat.9.html:1:1]
 1 | <!DOCTYPE html><menuitem><asdf></menuitem>x
   :                ^^^^^^^^^^^^^^^^
   `----
  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/menuitem-element_dat.9.html:1:1]
 1 | <!DOCTYPE html><menuitem><asdf></menuitem>x
   :                ^^^^^^^^^^^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/menuitem-element_dat.9.html:1:1]
 1 | <!DOCTYPE html><menuitem><asdf></menuitem>x
   :                          ^^^^^^
   `----
  x Element
   ,-[$DIR/tests/html5lib-tests-fixture/menuitem-element_dat.9.html:1:1]
 1 | <!DOCTYPE html><menuitem><asdf></menuitem>x
   :                          ^^^^^^
   `----
  x Child
   ,-[$DIR/tests/html5lib-tests-fixture/menuitem-element_dat.9.html:1:1]
 1 | <!DOCTYPE html><menuitem><asdf></menuitem>x
   :                                           ^
   `----
  x Text
   ,-[$DIR/tests/html5lib-tests-fixture/menuitem-element_dat.9.html:1:1]
 1 | <!DOCTYPE html><menuitem><asdf></menuitem>x
   :                                           ^
   `----
