False alarm for new async properties and implicit_getter

[basememara]

This triggers a violation for implicit_getter:

class DatabaseEntity {
    var isSynced: Bool {
        get async {
            await database.isEntitySynced(self)
        }
    }
}

There isn't another way to define an async property in Swift 5.5 so the getter is required here. I think if get async is declared for a property, it should not trigger a implicit_getter failure.

[letatas]

The problem is the same with throws and also with subscripts.

struct Test {
    subscript (value: Int) -> Int {
        get throws {
            if value == 0 {
                throw NSError()
            }
            else {
                return value
            }
        }
    }
}