[CharacterData-surrogates.html]
  [Text.substringData() splitting surrogate pairs]
    expected: FAIL

  [Text.replaceData() splitting and creating surrogate pairs]
    expected: FAIL

  [Text.deleteData() splitting and creating surrogate pairs]
    expected: FAIL

  [Text.insertData() splitting and creating surrogate pairs]
    expected: FAIL

  [Comment.substringData() splitting surrogate pairs]
    expected: FAIL

  [Comment.replaceData() splitting and creating surrogate pairs]
    expected: FAIL

  [Comment.deleteData() splitting and creating surrogate pairs]
    expected: FAIL

  [Comment.insertData() splitting and creating surrogate pairs]
    expected: FAIL