intl: Don't crash if v8BreakIterator not available

If the undocumented v8BreakIterator does not have data available,
monkeypatch it to throw an error instead of crashing.

Fixes: https://github.com/nodejs/node/issues/3111
PR-URL: https://github.com/nodejs/node/pull/4253


Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>