content: function test1()
      print "ok"
      exec(function()
          print "ok"
      end function)
  end function
  
  function test2()
      print "ko"
      exec(function()
          print "ko"
      end function)
      return "ko"
  end function
  
  function test3() as void
      print "okko"
  end function
  
  function exec(x)
      return
      print "unreachable"
  end function
  