LibJS: Convert all remaining non-Array tests to the new system :)

Libraries/LibJS/Tests/classes/class-getters.js

@@ -0,0 +1,68 @@
+test("basic functionality", () => {
+  class A {
+    get x() {
+      return 10;
+    }
+  }
+
+  expect(A).not.toHaveProperty("x");
+  expect(new A().x).toBe(10);
+});
+test("name", () => {
+  class A {
+    get x() {}
+  }
+
+  const d = Object.getOwnPropertyDescriptor(A.prototype, "x");
+  expect(d.get.name).toBe("get x");
+});
+
+test("extended name syntax", () => {
+  class A {
+    get "method with space"() {
+      return 1;
+    }
+
+    get 12() {
+      return 2;
+    }
+
+    get [`he${"llo"}`]() {
+      return 3;
+    }
+  }
+
+  const a = new A();
+  expect(a["method with space"]).toBe(1);
+  expect(a[12]).toBe(2);
+  expect(a.hello).toBe(3);
+});
+
+test("inherited getter", () => {
+  class Parent {
+    get x() {
+      return 3;
+    }
+  }
+
+  class Child extends Parent {}
+
+  expect(Child).not.toHaveProperty("x");
+  expect(new Child().x).toBe(3);
+});
+
+test("inherited getter overriding", () => {
+  class Parent {
+    get x() {
+      return 3;
+    }
+  }
+
+  class Child extends Parent {
+    get x() {
+      return 10;
+    }
+  }
+
+  expect(new Child().x).toBe(10);
+});