* bignum.c (big_div_struct): ynzero field removed.
  (bigdivrem1): Follow the above change.
  (bigdivrem_restoring): Ditto.



git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42544 b2dd03c8-39d4-4d8f-98ff-823fe69b080e