swift

428d7186 - Diagnose *all* cases where a subclass fails to override a required init

Diagnose *all* cases where a subclass fails to override a required init In cases where a subclass was unable to synthesize any initializers (for example, because there were missing designated initializers in the superclass), we were skipping checking of superclass required initializers. This meant that we would silently accept subclasses that cannot be initialized directly (that would produce an error), but could at runtime be initialized via a required initializer... that didn't account for the subclass. Fixes the original problem from https://github.com/apple/swift/issues/69965, but not the most minimal one.