message: test(persistent): fix test
diff: @@ -145,8 +145,8 @@ describe("HashMap", () => {
  expect(HS.size(diff)).equals(2)
  expect(Array.from(diff)).toEqual([new Index(0, 0), new Index(3, 3)])
  expect(Array.from(keys)).toEqual([
  - new Index(0, 0),
  new Index(2, 2),
  + new Index(0, 0),
  new Index(3, 3)
  ])
  })
  