7   ((x, y = x) => assertEquals(42, y))(42);
9   ((x, y = (x)) => assertEquals(42, y))(42);
10   ((x, y = `${x}`) => assertEquals("42", y))(42);
11   ((x, y = x = x + 1) => assertEquals(43, y))(42);
12   ((x, y = x()) => assertEquals(42, y))(() => 42);
13   ((x, y = new x()) => assertEquals(42, y.z))(function() { this.z = 42 });
14   ((x, y = -x) => assertEquals(-42, y))(42);
15   ((x, y = ++x) => assertEquals(43, y))(42);
16   ((x, y = x === 42) => assertTrue(y))(42);
17   ((x, y = (x == 42 ? x : 0)) => assertEquals(42, y))(42);
19   ((x, y = function() { return x }) => assertEquals(42, y()))(42);
20   ((x, y = () => x) => assertEquals(42, y()))(42);
23   ((x, y = {z: x}) => assertEquals(42, y.z))(42);
24   ((x, y = {[x]: x}) => assertEquals(42, y[42]))(42);
25   ((x, y = [x]) => assertEquals(42, y[0]))(42);
26   ((x, y = [...x]) => assertEquals(42, y[0]))([42]);
28   ((x, y = class {
30   }) => assertEquals(42, y[42]()))(42);
31   ((x, y = (new class {
33   })) => assertEquals(42, y.z()))(42);
35   ((x, y = (new class Y {
38   })) => assertEquals(42, y.z()))(42);
40   ((x, y = (new class {
42   })) => assertEquals(42, y.z))(42);
43   ((x, y = (new class Y {
45   })) => assertEquals(42, y.z))(42);
47   ((x, y = (new class extends x {
48   })) => assertEquals(42, y.z()))(class { z() { return 42 } });
51   ((x, {y = x}) => assertEquals(42, y))(42, {});  property
52   ((x, [y = x]) => assertEquals(42, y))(42, []);
60     let y = 2;
61     ((x, y, a = x, b = y) => {
64       assertEquals(4, y);
78     y() {  method in testExpressionTypes.anonymousFunction6260ddc60100.testSuper.B
83   new B().y();
100   ((x, y = eval('x')) => assertEquals(42, y))(42);
101   ((x, {y = eval('x')}) => assertEquals(42, y))(42, {});  property