Function rename

lib/internal/vfs/setup.js:601–606

(oldPath, newPath)

    rm: (path, options) => vfsOp(path, (vfs, n) => vfs.promises.rm(n, options).then(() => true)),
    unlink: (path) => vfsOp(path, (vfs, n) => vfs.promises.unlink(n).then(() => true)),
    rename(oldPath, newPath) {
      return vfsOp(oldPath, (vfs, n) => {
        checkSameVFS(n, toPathStr(newPath), 'rename', vfs);
        return vfs.promises.rename(n, resolve(toPathStr(newPath))).then(() => true);
      });
    },
    copyFile(src, dest, mode) {
      return vfsOp(src, (vfs, n) => {
        checkSameVFS(n, toPathStr(dest), 'copyfile', vfs);