Type implementing protocol fails to bridge when `async throw` is missing

[piercifani]

The ActualFoo type here is correctly implementing Foo

protocol Foo {
  func bar() async throws
}

class ActualFoo {
  func bar() {}
}

But SkipBridge throws this error:

[✗]  Class 'ActualFoo' is not abstract and does not implement abstract member 'bar'.

[aabewhite]

I believe in Kotlin the "async-ness" has to match