Breakpoints are resolved and set only after querying for their actual locations from v8 engine.

Change-Id: If119865f50d9f91a4930096751599a4f22bc9d26
Reviewed-on: http://codereview.qt.nokia.com/3406


Reviewed-by: Kai Koehne <kai.koehne@nokia.com>
Reviewed-by: Qt Sanity Bot <qt_sanity_bot@ovi.com>