add 3 missing op classes and more

change -fOP to -fBASEOP, -fPVOP to -fPVOP_OR_SVOP for consistency
add 3 missing op classes BASEOP_OR_UNOP FILESTATOP LOOPEXOP
  (thanks bulk88 for issue #5)
print error on -t,-r, i.e. without -c and -e stats