0399fcf6fa
No change in functionality. Just changing the analyzer's nullability_test.dart so that it generates the `nonNullable` annotation for a promotion from type parameter `E` to `E&Object`. This makes it consistent with the front end test runner behavior. Change-Id: I9b74222257b432e361fbe46aa7d4d7070225a5e5 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/133322 Commit-Queue: Johnni Winther <johnniwinther@google.com> Reviewed-by: Johnni Winther <johnniwinther@google.com>