parse.y: call_op2
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52282 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
parse.y: call_op2
while dot_or_colon should not allow ".?". [Feature #11537]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52282 b2dd03c8-39d4-4d8f-98ff-823fe69b080e