Function fileChanged

packages/cli/src/util/dev/server.ts:3421–3428

(
  name: string,
  changed: Set<string>,
  removed: Set<string>
)

}

function fileChanged(
  name: string,
  changed: Set<string>,
  removed: Set<string>
): void {
  changed.add(name);
  removed.delete(name);
}

function fileRemoved(
  name: string,