Move hpb::internal::{Serialize, HasExtensionOrUnknown, GetOrPromoteExtension, DeepCopy, DeepClone} to message_lock.h as they all use the message lock
absl status helpers are now housed in status.h
PiperOrigin-RevId: 681432239
Move hpb::internal::{Serialize, HasExtensionOrUnknown, GetOrPromoteExtension, DeepCopy, DeepClone} to message_lock.h as they all use the message lock
absl status helpers are now housed in status.h
PiperOrigin-RevId: 679307322