8145486: jjs should support documentation key shortcut in interactive mode
Reviewed-by: mhaupt, hannesw
SyntaxError:33:Expected l-value but found +
++ +3
^
SyntaxError:33:Expected l-value but found -
++ -7
^
SyntaxError:33:Expected l-value but found +
-- +2
^
SyntaxError:33:Expected l-value but found -
-- -8
^