[CustomElementRegistry-upgrade.html]
  [upgrade is a no-op when called on a shadow root with no association]
    expected: FAIL

  [upgrade should upgrade a candidate element when called on a shadow root with an association]
    expected: FAIL

  [upgrade should not upgrade a candidate element not associated with a registry]
    expected: FAIL

  [upgrade is a no-op when called on an element associated with a different registry]
    expected: FAIL