parse.y: use nd_tag
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53411 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
parse.y: use nd_tag
instead of nd_state. [ruby-core:72638] [Bug #11932]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53411 b2dd03c8-39d4-4d8f-98ff-823fe69b080e