ethapi: fix eth_createAccessList unmarshaling error (#524)

* fix: solves eth_createAccessList unmarshaling error

* added back state

* ethapi: preserve NotFound error, retrieve state once

---------

Co-authored-by: protolambda <proto@protolambda.com>

Author: sebaespindola

internal/ethapi/api.go

@@ -1282,7 +1282,7 @@ type accessListResult struct {
 
 // CreateAccessList creates an EIP-2930 type AccessList for the given transaction.
 // Reexec and BlockNrOrHash can be specified to create the accessList on top of a certain state.
-func (api *BlockChainAPI) CreateAccessList(ctx context.Context, args TransactionArgs, state *state.StateDB, blockNrOrHash *rpc.BlockNumberOrHash) (*accessListResult, error) {
+func (api *BlockChainAPI) CreateAccessList(ctx context.Context, args TransactionArgs, blockNrOrHash *rpc.BlockNumberOrHash) (*accessListResult, error) {
 	bNrOrHash := rpc.BlockNumberOrHashWithNumber(rpc.LatestBlockNumber)
 	if blockNrOrHash != nil {
 		bNrOrHash = *blockNrOrHash
@@ -1302,7 +1302,7 @@ func (api *BlockChainAPI) CreateAccessList(ctx context.Context, args Transaction
 		}
 	}
 
-	acl, gasUsed, vmerr, err := AccessList(ctx, api.b, bNrOrHash, args, state)
+	acl, gasUsed, vmerr, err := AccessList(ctx, api.b, bNrOrHash, args)
 	if err != nil {
 		return nil, err
 	}
@@ -1316,12 +1316,13 @@ func (api *BlockChainAPI) CreateAccessList(ctx context.Context, args Transaction
 // AccessList creates an access list for the given transaction.
 // If the accesslist creation fails an error is returned.
 // If the transaction itself fails, an vmErr is returned.
-func AccessList(ctx context.Context, b Backend, blockNrOrHash rpc.BlockNumberOrHash, args TransactionArgs, state *state.StateDB) (acl types.AccessList, gasUsed uint64, vmErr error, err error) {
+func AccessList(ctx context.Context, b Backend, blockNrOrHash rpc.BlockNumberOrHash, args TransactionArgs) (acl types.AccessList, gasUsed uint64, vmErr error, err error) {
 	// Retrieve the execution context
 	db, header, err := b.StateAndHeaderByNumberOrHash(ctx, blockNrOrHash)
 	if db == nil || err != nil {
 		return nil, 0, nil, err
 	}
+	state := db
 
 	// Ensure any missing fields are filled, extract the recipient and input data
 	if err = args.setFeeDefaults(ctx, b, header); err != nil {