parse.y: primary should not be 0
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59644 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
parse.y: primary should not be 0
[ruby-core:82447] [Bug #13836]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59644 b2dd03c8-39d4-4d8f-98ff-823fe69b080e