code: def methods(self):
          
          def is_method(comment):
              return isinstance(comment, FunctionDoc) and comment.member
          return self._filtered_iter(is_method)
docs: Returns a generator of all member functions in the file, in textual
          order.  
  
          >>> file = FileDoc('class.js', read_file('examples/class.js'))
          >>> file.methods.next().name
          'first_method'