Function: clone
Class: gp2c
Description:
 (small):small:parens             $1
 (int):int                        gclone($1)
 (real):real                      gclone($1)
 (mp):mp                          gclone($1)
 (vecsmall):vecsmall              gclone($1)
 (vec):vec                        gclone($1)
 (pol):pol                        gclone($1)
 (list):list                      gclone($1)
 (closure):closure                gclone($1)
 (genstr):genstr                  gclone($1)
 (gen):gen                        gclone($1)
