iseq.c: fix r37397
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37403 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
iseq.c: fix r37397
type. fix r37397.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37403 b2dd03c8-39d4-4d8f-98ff-823fe69b080e