fixing the ruby creation tests

lib/ruby/method_statement.rb

@@ -8,16 +8,10 @@ module Ruby
       @clazz = clazz
     end
 
-
     def to_vool
       MethodStatement.new( @name , @args , @body.normalize)
     end
 
-    def has_yield?
-      each{|statement| return true if statement.is_a?(YieldStatement)}
-      return false
-    end
-
     def to_s(depth = 0)
       arg_str = @args.collect{|a| a.to_s}.join(', ')
       at_depth(depth , "def #{name}(#{arg_str})" , @body.to_s(depth + 1) , "end")