feature request: public Stream.Readable#dump() method

[jonathanong]

like: https://github.com/joyent/node/blob/master/lib/_http_incoming.js#L196

right now, you have to do stream.resume() with a comment saying why you're resuming the stream so other people know what you're doing. i prefer if there were a stream.dump() method so the comment is unnecessary and users can look up documentation as to why you need to dump the stream.