Results 3 issues of Wout Werkman

# Sealed types support I think it would be a very powerful addition if the grammar allows to define sealed types, which would correspond to sealed types in modern languages....

https://github.com/JetBrains/Grammar-Kit/issues/305 - Added inspections for sealed rules - Updated default Java version to 17

**Is your feature request related to a problem? Please describe.** A common use case for users is to send some state using RPC as a `Flow` ```kt @Rpc interface MyRpcService...

feature