Boolean support

[dagolden]

Ingy has mentioned that the boolean rules are changing and all the special case logic could probably go away.

There is also this ticket complaining about a lack of support reading a boolean: https://rt.cpan.org/Ticket/Display.html?id=58782

We need to resolve how booleans are to be handled for 2.00.

[dagolden]

ping. any ideas, particularly about the bug reading a boolean?

[rjbs]

It would be nice to handle literal /\A(?:null|true|false)\z/i properly. True and false could be interpreted as 1 and '' sanely. I even think the current behavior is livable for now, although lousy. And since I think it should work, it would be good to warn on those literals now. And once you identify them to warn, that's 90% of the work to load them, I'd think.