Fix symbol printing

Author: kddnewton

lib/syntax_tree/visitor/match_visitor.rb

@@ -107,7 +107,7 @@ def text(name, value)
         q.nest(0) do
           q.text(name)
           q.text(": ")
-          q.text(value)
+          value.pretty_print(q)
         end
       end
     end