[var-reference-registered-properties-cycles.html]
  [A var() cycle between two registered properties is handled correctly.]
    expected: FAIL

  [A var() cycle between a registered properties and an unregistered property is handled correctly.]
    expected: FAIL

  [A var() cycle between a two unregistered properties is handled correctly.]
    expected: FAIL

  [A var() cycle between a syntax:'*' property and an unregistered property is handled correctly.]
    expected: FAIL

  [Custom properties with universal syntax become guaranteed-invalid when invalid at computed-value time]
    expected: FAIL