> > > Contextual keywords are usually OK as modifiers (as long as they don’t want > to show up somewhere else), so `sealed` is not terrible. > > ???, i'm confused, > a contextual keyword means it's only a keyword in some context, so if it > shows up somewhere else, it's not a keyword.
Consider “extends”. Yes, it shows up in the class declaration grammar, but it also wants to show up in type bounds: <T extends Bar>. We have to think very carefully whether a contextual keyword we introduce today, when we might only be thinking of the declaration, will come back later in less constrained syntactic contexts.
