Test Runner Not Detecting Equal Lists of Interval<DateTime>/Period

When running the test CqlAggregateTest:AggregateTests:RolledOutIntervals, the test runner reports:

Test CqlAggregateTest:AggregateTests:RolledOutIntervals status: fail expected: {
                                  Interval[@2012-01-01, @2012-02-28],
                                  Interval[@2012-02-29, @2012-04-28],
                                  Interval[@2012-04-29, @2012-06-28]
                                } actual: [ [Object], [Object], [Object] ]

My engine is returning the following result:

{
  "resourceType": "Parameters",
  "parameters": [
    {
      "extension": [
        {
          "url": "http://hl7.org/fhir/StructureDefinition/cqf-cqlType",
          "valueString": "List<Interval<System.DateTime>>"
        }
      ],
      "name": "return",
      "valuePeriod": {
        "start": "2012-01-01",
        "end": "2012-02-28"
      }
    },
    {
      "extension": [
        {
          "url": "http://hl7.org/fhir/StructureDefinition/cqf-cqlType",
          "valueString": "List<Interval<System.DateTime>>"
        }
      ],
      "name": "return",
      "valuePeriod": {
        "start": "2012-02-29",
        "end": "2012-04-28"
      }
    },
    {
      "extension": [
        {
          "url": "http://hl7.org/fhir/StructureDefinition/cqf-cqlType",
          "valueString": "List<Interval<System.DateTime>>"
        }
      ],
      "name": "return",
      "valuePeriod": {
        "start": "2012-04-29",
        "end": "2012-06-28"
      }
    }
  ]
}

According to the CQL IG FHIR type mapping, Interval<System.DateTime> maps to FHIR.Period. According to the $cql operation, the parameter should be repeated for each element in the list. So.. I believe my engine is returning the correct result to represent the Interval<DateTime>s as FHIR.Periods in a list of results.

Start by running CqlAggregateTest:AggregateTests:RolledOutIntervals and inspect how the test runner compares the expected Interval list with the repeated FHIR Period results shown in the issue. Done means the runner recognizes these equivalent list values without breaking other aggregate tests.