This commit converts NullabilityChecker to the new checker family
framework that was introduced in the recent commit
6833076a5d
This commit removes the dummy checker `nullability.NullabilityBase`
because it was hidden from the users and didn't have any useful role
except for helping the registration of the checker parts in the old
ad-hoc system (which is replaced by the new standardized framework).
Except for the removal of this dummy checker, no functional changes
intended.
54 KiB
54 KiB