[polkadot-staging] Separate send_message() validations (paritytec…

…h#2795)

* Fix xcm-bridge-hub build

* Move send_message definition to MessagesBridge impl

* Make send_message infallible

* Split `MessagesBridge` into 2 phases

Split `MessagesBridge` into 2 phases:
- message validation
- message sending

Cargo.toml

@@ -14,6 +14,7 @@ members = [
 	"modules/messages",
 	"modules/parachains",
 	"modules/relayers",
+	"modules/xcm-bridge-hub",
 	"modules/xcm-bridge-hub-router",
 	"primitives/beefy",
 	"primitives/chain-asset-hub-rococo",

modules/messages/src/benchmarking.rs

@@ -31,7 +31,7 @@ use codec::Decode;
 use frame_benchmarking::{account, benchmarks_instance_pallet};
 use frame_support::weights::Weight;
 use frame_system::RawOrigin;
-use sp_runtime::traits::TrailingZeroInput;
+use sp_runtime::{traits::TrailingZeroInput, BoundedVec};
 use sp_std::{ops::RangeInclusive, prelude::*};
 
 const SEED: u32 = 0;
@@ -443,7 +443,7 @@ benchmarks_instance_pallet! {
 
 fn send_regular_message<T: Config<I>, I: 'static>() {
 	let mut outbound_lane = outbound_lane::<T, I>(T::bench_lane_id());
-	outbound_lane.send_message(vec![]).expect("We craft valid messages");
+	outbound_lane.send_message(BoundedVec::try_from(vec![]).expect("We craft valid messages"));
 }
 
 fn receive_messages<T: Config<I>, I: 'static>(nonce: MessageNonce) {