The separation of parse and evaluate steps permits implementation of behavior
on unhandled exception during evaluation that is different from that on
parsing error.
Implementation of fetching a complete module script graph is tracked in
https://bugzilla.mozilla.org/show_bug.cgi?id=1572644
Differential Revision: https://phabricator.services.mozilla.com/D41339
--HG--
extra : moz-landing-system : lando