Remove unused methods from DocScanner.

      @current_tag[:doc] = "" unless @current_tag.has_key?(:doc)

    end

    # Forgets the previously parsed tag

    def remove_last_tag

      @tags.pop

      @current_tag = @tags.last

    end

    # matches {type} if possible and sets it on @current_tag

    # Also checks for {optionality=} in type definition.

    def maybe_type

      end

    end

    # matches identifier name if possible and sets it on @current_tag

    def maybe_name

      skip_horiz_white

      if look(@ident_pattern)

        @current_tag[:name] = match(@ident_pattern)

      end

    end

    # matches ident.chain if possible and sets it on @current_tag

    def maybe_ident_chain(propname)

      skip_horiz_white