`HandleWrap.isRefed()` was renamed to `hasRef()`. However, the filename
of related TCs has not been reflected.
Refs: https://github.com/nodejs/node/commit/f31a5ec34a
PR-URL: https://github.com/nodejs/node/pull/42754
Reviewed-By: Darshan Sen <raisinten@gmail.com>
Reviewed-By: Tobias Nießen <tniessen@tnie.de>
Reviewed-By: Akhil Marsonya <akhil.marsonya27@gmail.com>
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: Mestery <mestery@protonmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
