[iterable.tentative.html]
  [Iterating over an empty StylePropertyMap gives a zero-length array]
    expected: FAIL

  [StylePropertyMap iterates properties in correct order]
    expected: FAIL

  [StylePropertyMap iterator returns CSS properties with the correct CSSStyleValue]
    expected: FAIL

  [StylePropertyMap iterator returns list-valued properties with the correct CSSStyleValue]
    expected: FAIL

  [StylePropertyMap iterator returns custom properties with the correct CSSStyleValue]
    expected: FAIL

  [StylePropertyMap iterates properties in inline style order]
    expected: FAIL

