[ObjC] Update tests to use both unknown fields apis.
Also fixes edge case where merging into an autocreated message for a field wasn't marking the field as set in the parent. PiperOrigin-RevId: 655196339
T
Thomas Van Lenten committed
5ceae5f3b0f4792fe8f6f0856308fffcc2cbc24f
Parent: af3012b
Committed by Copybara-Service <copybara-worker@google.com>
on 7/23/2024, 4:38:57 PM