session-info: add new fields + migration (#4545)

* session_info: v2 + migration

* use primitives::v2

* use polkadot_primitives::v2

* impl primitives::v2

* fix approval-voting tests

* fix other tests

* hook storage migration up

* backwards compat (1)

* backwards compat (2)

* fmt

* fix tests

* FMT

* do not reexport v1 in v2

* fmt

* set storage version to 1

Co-authored-by: Javier Viola <javier@parity.io>

polkadot/node/network/availability-recovery/src/lib.rs

@@ -48,9 +48,12 @@ use polkadot_node_network_protocol::{
 };
 use polkadot_node_primitives::{AvailableData, ErasureChunk};
 use polkadot_node_subsystem_util::request_session_info;
-use polkadot_primitives::v1::{
-	AuthorityDiscoveryId, BlakeTwo256, BlockNumber, CandidateHash, CandidateReceipt, GroupIndex,
-	Hash, HashT, SessionIndex, SessionInfo, ValidatorId, ValidatorIndex,
+use polkadot_primitives::{
+	v1::{
+		AuthorityDiscoveryId, BlakeTwo256, BlockNumber, CandidateHash, CandidateReceipt,
+		GroupIndex, Hash, HashT, SessionIndex, ValidatorId, ValidatorIndex,
+	},
+	v2::SessionInfo,
 };
 use polkadot_subsystem::{
 	errors::RecoveryError,

polkadot/node/network/availability-recovery/src/tests.rs

@@ -220,6 +220,7 @@ impl TestState {
 					n_delay_tranches: 0,
 					no_show_slots: 0,
 					needed_approvals: 0,
+					active_validator_indices: vec![],
 				}))).unwrap();
 			}
 		);