Hi Tatsuo, thanks for pointing out the past conversation.
So, the requirement got 1 more vote from me. But to not make noise to people who are not interested in raw parse tree, I guess it's better to add a new option "debug_print_raw_parse". For people who are interested in raw parse tree, turning on a flag once is much more convenient than typing a command in the debugger for every trace.
I will wait to see if Tom still objects to adding that. I will not make the code change unless I see a hint of "go".
