Does restoring a database in Microsoft SQL Server add objects to Resource Database? As far as I know the resource database contains information on all objects in its server instance, so I would think it's only natural that when you restore a database from a backup file, part of the process would be to register its objects in the server's resource database but I can't find any concrete information on the subject and I'm unable to test it locally.
Well, reading the documentation for Resource Database (highlighting mine)


  The Resource database is a read-only database that contains all the system objects that are included with SQL Server. SQL Server
  system objects, such as sys.objects, are physically persisted in the
  Resource database, but they logically appear in the sys schema of
  every database. The Resource database does not contain user data or
  user metadata.


Given the above and the fact that it is READ-ONLY, I don't see how restoring a database updates the resource database.