Recently we upgraded to Gulp 4. However, the following things still need to be addressed in some way:

- If a task series is executed with an anonymous function inside it, we'll see `Starting '<anonymous>'` in the output, which isn't that great. We need to either suppress it or use named functions.
- If a task is private, it should be hidden in some way. For example, `gh-pages-prepare` is only used in the public `web` target and should not be used on its own, however currently it shows in the default `gulp` output since it's a regular task. Perhaps we should mark them with an underscore?
args.push("--manifestFile=" + PDF_TEST);
        break;
      case "unit":
        args.push("--unitTest");
        break;
      case "font":
        args.push("--fontTest");
        break;
      case "integration":
        args.push("--integration");
        break;
      default:
        this.emit("error", new Error("Unknown name: " + testsName));
        return null;
    }
    if (bot) {
      args.push("--strictVerify");
    }
    if (process.argv.includes("--noChrome")) {
      args.push("--noChrome");
    }
    const testProcess = startNode(args, { cwd: TEST_DIR, stdio: "inherit" });
    testProcess.on("close", function (code) {
      source.push(null);
    });
    return undefined;
  };
  return source;
}
function makeRef(done, bot) {