Class UseExisting

packages/core/test/render3/jit/declare_injectable_spec.ts:153–155

const UseExistingToken = new InjectionToken('UseExistingToken');

class UseExisting {
  static ɵprov = ɵɵngDeclareInjectable({type: UseExisting, useExisting: UseExistingToken});
}

class DependingClass {
  constructor(readonly testClass: UseClass) {}