Native Blocks Ep. 2 - Switch usages to new package (#10885)

* panic in SizeSSZ

* moving slowly

* adapt old code to new interfaces

* return interfaces from factory functions

* replace the rest of WrappedSignedBeaconBlock

* WrappedBeaconBlock

* WrappedBeaconBlockBody

* miscellaneous

* Test_BeaconBlockIsNil

* replace usages of BeaconBlockIsNil

* replace usages of mutator

* fix all build errors

* fix some more issues

* mutator changes

* relax assertions when initializing

* revert changes in object_mapping.go

* allow calling Proto on nil

* Revert "allow calling Proto on nil"

This reverts commit ecc84e4553.

* modify Copy and Proto methods

* remove unused var

* fix block batch tests

* correct BUILD file

* Error when initializing nil objects

* one more error fix

* add missing comma

* rename alias to blocktest

* add logging

* error when SignedBeaconBlock is nil

* fix last test

* import fix

* broken

* working

* test fixes

* reduce complexity of processPendingBlocks

* simplified

beacon-chain/blockchain/init_sync_process_block.go

@@ -4,8 +4,8 @@ import (
 	"context"
 
 	"github.com/pkg/errors"
+	"github.com/prysmaticlabs/prysm/consensus-types/blocks"
 	"github.com/prysmaticlabs/prysm/consensus-types/interfaces"
-	"github.com/prysmaticlabs/prysm/consensus-types/wrapper"
 )
 
 // This saves a beacon block to the initial sync blocks cache. It rate limits how many blocks
@@ -56,7 +56,7 @@ func (s *Service) getBlock(ctx context.Context, r [32]byte) (interfaces.SignedBe
 			return nil, errors.Wrap(err, "could not retrieve block from db")
 		}
 	}
-	if err := wrapper.BeaconBlockIsNil(b); err != nil {
+	if err := blocks.BeaconBlockIsNil(b); err != nil {
 		return nil, errBlockNotFoundInCacheOrDB
 	}
 	return b, nil