[FormControlRange-toString.html]
  [FormControlRange toString() handles value shorter than range.]
    expected: FAIL

  [FormControlRange toString() handles auto-collapsed backwards ranges.]
    expected: FAIL

  [FormControlRange uses current input.value, not value attribute.]
    expected: FAIL

  [FormControlRange collapses on full .value= replacement.]
    expected: FAIL

  [FormControlRange collapses on full .value= replacement (shorter).]
    expected: FAIL