Finish migration to v2 primitives (#5037)

* remove v0 primitives from polkadot-primitives

* first pass: remove v0

* fix fallout in erasure-coding

* remove v1 primitives, consolidate to v2

* the great import update

* update runtime_api_impl_v1 to v2 as well

* guide: add `Version` request for runtime API

* add version query to runtime API

* reintroduce OldV1SessionInfo in a limited way

polkadot/node/core/chain-selection/src/backend.rs

@@ -21,7 +21,7 @@
 //! [`Backend`], maintaining consistency between queries and temporary writes,
 //! before any commit to the underlying storage is made.
 
-use polkadot_primitives::v1::{BlockNumber, Hash};
+use polkadot_primitives::v2::{BlockNumber, Hash};
 
 use std::collections::HashMap;
 

polkadot/node/core/chain-selection/src/db_backend/v1.rs

@@ -38,7 +38,7 @@ use crate::{
 };
 
 use polkadot_node_primitives::BlockWeight;
-use polkadot_primitives::v1::{BlockNumber, Hash};
+use polkadot_primitives::v2::{BlockNumber, Hash};
 
 use parity_scale_codec::{Decode, Encode};
 use polkadot_node_subsystem_util::database::{DBTransaction, Database};

polkadot/node/core/chain-selection/src/lib.rs

@@ -23,7 +23,7 @@ use polkadot_node_subsystem::{
 	overseer, FromOverseer, OverseerSignal, SpawnedSubsystem, SubsystemContext, SubsystemError,
 };
 use polkadot_node_subsystem_util::database::Database;
-use polkadot_primitives::v1::{BlockNumber, ConsensusLog, Hash, Header};
+use polkadot_primitives::v2::{BlockNumber, ConsensusLog, Hash, Header};
 
 use futures::{channel::oneshot, future::Either, prelude::*};
 use parity_scale_codec::Error as CodecError;

polkadot/node/core/chain-selection/src/tests.rs

@@ -39,7 +39,7 @@ use polkadot_node_subsystem::{
 	jaeger, messages::AllMessages, ActivatedLeaf, ActiveLeavesUpdate, LeafStatus,
 };
 use polkadot_node_subsystem_test_helpers as test_helpers;
-use polkadot_primitives::v1::{BlakeTwo256, ConsensusLog, HashT};
+use polkadot_primitives::v2::{BlakeTwo256, ConsensusLog, HashT};
 
 #[derive(Default)]
 struct TestBackendInner {

polkadot/node/core/chain-selection/src/tree.rs

@@ -24,7 +24,7 @@
 //! and as the finalized block advances, orphaned sub-trees are entirely pruned.
 
 use polkadot_node_primitives::BlockWeight;
-use polkadot_primitives::v1::{BlockNumber, Hash};
+use polkadot_primitives::v2::{BlockNumber, Hash};
 
 use std::collections::HashMap;