[m-rev.] for review: Reset es_action field when idle ws engine receives a notification.

[Peter Wang]

On Mon, 20 Apr 2020 14:50:45 +1000 (AEST), Julien Fischer <jfischer at opturion.com> wrote:
> 
> On Mon, 20 Apr 2020, Peter Wang wrote:
> 
> > In MR_do_idle_worksteal, reset the engine's es_action field to
> > MR_ENGINE_ACTION_NONE before performing the notified action.
> > This mirrors the behaviour in MR_do_sleep.
> >
> > Fixes the assertion failure in Mantis bug #461: when an engine is
> > shut down, MR_verify_final_engine_sleep_sync checks that the engine's
> > es_action field is MR_ENGINE_ACTION_NONE.
> >
> > runtime/mercury_context.c:
> >    As above.
> >
> > NEWS:
> >    Announce change.
> 
> That looks fine; presuambly this should be merged on to the release
> branch as well?

Yes, it should.

Peter