get_symbol_or_name

# File lib/rdoc/parsers/parse_rb.rb, line 2359
    def get_symbol_or_name
      tk = get_tk
      case tk
      when  TkSYMBOL
        tk.text.sub(/^:/, '')
      when TkId, TkOp
        tk.name
      when TkSTRING
        tk.text
      else
        raise "Name or symbol expected (got #{tk})"
      end
    end