parse.y: fix segv after invalid keyword argument
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52461 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Added by nobu (Nobuyoshi Nakada) over 8 years ago
parse.y: fix segv after invalid keyword argument
preceding keyword list is NULL when syntax error is there.
[ruby-core:71356] [Bug #11663]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52461 b2dd03c8-39d4-4d8f-98ff-823fe69b080e