#### Fix inconsistent assignment format (#17469 by @fisker)

<!-- prettier-ignore -->
```jsx
// Input
didScheduleRenderPhaseUpdateDuringThisPassFoo = didScheduleRenderPhaseUpdate = true

// Prettier stable (--parser=babel)
didScheduleRenderPhaseUpdateDuringThisPassFoo =
  didScheduleRenderPhaseUpdate = true;

// Prettier stable (--parser=typescript)
didScheduleRenderPhaseUpdateDuringThisPassFoo = didScheduleRenderPhaseUpdate =
  true;

// Prettier main
didScheduleRenderPhaseUpdateDuringThisPassFoo =
  didScheduleRenderPhaseUpdate = true;
```