[parse-slotted.html]
  ["::slotted(bar)" should be a valid selector]
    expected: FAIL

  ["::slotted([attr=\\"foo\\"\])" should be a valid selector]
    expected: FAIL

  ["::slotted(*)" should be a valid selector]
    expected: FAIL

  ["::slotted(.class)" should be a valid selector]
    expected: FAIL

  ["::slotted(:not(foo))" should be a valid selector]
    expected: FAIL

  ["::slotted(:not(:nth-last-of-type(2)):not([slot=\\"foo\\"\]))" should be a valid selector]
    expected: FAIL

  ["::slotted(:first-child)" should be a valid selector]
    expected: FAIL

  ["::slotted(:hover)" should be a valid selector]
    expected: FAIL