message: test(compiler-cli): move `TrackByFunction` from `fake_common` to `fake_core`
  The `TrackByFunction` is declared in `@angular/core` so it should also be
  included in `fake_core` instead of `fake_common`.
  PR Close
diff: @@ -114,3 +114,7 @@ export interface PipeTransform {
  export interface OnDestroy {
  ngOnDestroy(): void;
  }
  +
  +export interface TrackByFunction<T> {
  + (index: number, item: T): any;
  +}
  