git-svn-id: svn://svn.cc65.org/cc65/trunk@5263 b7a2c559-68d2-44c3-8de9-860c34a00d81
can merge duplicate ones and assign them global ids. git-svn-id: svn://svn.cc65.org/cc65/trunk@5262 b7a2c559-68d2-44c3-8de9-860c34a00d81