Method swap

tests/java/PathTest.java:226–233

()

    }

    public void swap() {
        try (Path p1 = new PathBuilder().lineTo(40, 40).lineTo(40, 0).lineTo(0, 40).lineTo(0, 0).closePath().build();
             Path p2 = new PathBuilder().lineTo(0, 0).lineTo(20, 20).build();) {
            p1.swap(p2);
            assertEquals(new PathBuilder().lineTo(0, 0).lineTo(20, 20).build(), p1);
            assertEquals(new PathBuilder().lineTo(40, 40).lineTo(40, 0).lineTo(0, 40).lineTo(0, 0).closePath().build(), p2);
        }
    }

    public void contains() {
        try (Path p = new PathBuilder().addRRect(RRect.makeLTRB(10, 20, 54, 120, 10, 20)).build()) {