Ruby

• bignum.c (enum big_op_t): new type.
  (big_op): use enum big_op_t.
  (big_gt): ditto.
  (big_ge): ditto.
  (big_lt): ditto.
  (big_le): ditto.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@36396 b2dd03c8-39d4-4d8f-98ff-823fe69b080e