ctEqual(entryCollection.length, 4);
  });

  test('ICStatsEntryGroup', function() {
    const entryCollection = new tr.e.v8.ICStatsCollection();
    entryCollection.add(new tr.e.v8.ICStatsEntry(obj1));
    entryCollection.add(new tr.e.v8.ICStatsEntry(obj2));
    entryCollection.add(new tr.e.v8.ICStatsEntry(obj3));
    entryCollection.add(new tr.e.v8.ICStatsEntry(obj4));

    const entryGroups = entryCollection.groupBy('type');
    assert.strictEqual(entryGroups[0].length, 2);
    assert.strictEqual(entryGro