message: chore(filter.spec): fix variable-- test case
diff: @@ -125,7 +125,7 @@ describe('Filters', () => {
  it('handle division with variable--', () => {
  const vm = new Vue({
  data: { a: 7 },
  - template: `<div>{{ a++ / 2 | double }}</div>`,
  + template: `<div>{{ a-- / 2 | double }}</div>`,
  filters: { double: v => v * 2 }
  }).$mount()
  expect(vm.$el.textContent).toBe(String(7))
  