parse.y: no duplicate attrset ID
rb_id_attrset()
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46289 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
parse.y: no duplicate attrset ID
rb_id_attrset()already, so no further registration is needed.[ruby-core:62861]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@46289 b2dd03c8-39d4-4d8f-98ff-823fe69b080e