[selectedcontent-mutations.html]
  [MutationObserver records during parsing of <select> with <selectedcontent>: test1]
    expected: FAIL

  [MutationObserver records during parsing of <select> with <selectedcontent>: test2]
    expected: FAIL

  [MutationObserver records during parsing of <select> with <selectedcontent>: test3]
    expected: FAIL

  [MutationObserver records during parsing of <select> with <selectedcontent>: test4]
    expected: FAIL

  [MutationObserver records during parsing of <select> with <selectedcontent>: test5]
    expected: FAIL

  [MutationObserver records during parsing of <select> with <selectedcontent>: test6]
    expected: FAIL

  [MutationObserver records during parsing of <select> with <selectedcontent>: test7]
    expected: FAIL