message: Refer to Jest spyOn explicitly
diff: @@ -211,7 +211,7 @@ assert.isTrue(
  it("should ask if user wants to destructure or not", async () => {
  const code = `console.log(foo.bar.b[cursor]az)`;
  const editor = new InMemoryEditor(code);
  - spyOn(editor, "askUser");
  + jest.spyOn(editor, "askUser");
  await extractVariable(editor);
  @@ -230,7 +230,7 @@ assert.isTrue(
  it("should not ask if user wants to destructure if it can't be", async () => {
  const code = `console.log([cursor]"hello")`;
  const editor = new InMemoryEditor(code);
  - spyOn(editor, "askUser");
  + jest.spyOn(editor, "askUser");
  await extractVariable(editor);
  