Note that this already worked fine by just operating on the field. Like `if (action.kind === 'x')` / `switch (action.kind)`. This "only" extends support to de

Note that this already worked fine by just operating on the field. Like `if (action.kind === 'x')` / `switch (action.kind)`. This "only" extends support to destructured discriminators. Definitely nice to have, but of limited impact.