Relax force_default_xcm_version for testnet system parachains (#2385)

This PR fixes two things:
- relax `force_default_xcm_version` for testnet system parachains (e.g.
BridgeHubWestend has now 2 and there is no way to change it to 3, so we
need to call `force_xcm_version(3)` for every parachain that it is
connected to, because we send XCMv3 messages)
- add `Storage` item to `PolkadotXcm` pallet definition (now we cannot
see storage items for `pallet_xcm` in PJS)


## TODO

- [ ] when merged open PR to `polkadot-fellows/runtimes` repo

cumulus/parachains/runtimes/assets/asset-hub-rococo/src/xcm_config.rs

@@ -275,13 +275,15 @@ impl Contains<RuntimeCall> for SafeCallFilter {
 
 		matches!(
 			call,
-			RuntimeCall::PolkadotXcm(pallet_xcm::Call::force_xcm_version { .. }) |
+			RuntimeCall::PolkadotXcm(
-				RuntimeCall::System(
+				pallet_xcm::Call::force_xcm_version { .. } |
-					frame_system::Call::set_heap_pages { .. } |
+					pallet_xcm::Call::force_default_xcm_version { .. }
-						frame_system::Call::set_code { .. } |
+			) | RuntimeCall::System(
-						frame_system::Call::set_code_without_checks { .. } |
+				frame_system::Call::set_heap_pages { .. } |
-						frame_system::Call::kill_prefix { .. },
+					frame_system::Call::set_code { .. } |
-				) | RuntimeCall::ParachainSystem(..) |
+					frame_system::Call::set_code_without_checks { .. } |
+					frame_system::Call::kill_prefix { .. },
+			) | RuntimeCall::ParachainSystem(..) |
 				RuntimeCall::Timestamp(..) |
 				RuntimeCall::Balances(..) |
 				RuntimeCall::CollatorSelection(

cumulus/parachains/runtimes/assets/asset-hub-westend/src/xcm_config.rs

@@ -272,13 +272,15 @@ impl Contains<RuntimeCall> for SafeCallFilter {
 
 		matches!(
 			call,
-			RuntimeCall::PolkadotXcm(pallet_xcm::Call::force_xcm_version { .. }) |
+			RuntimeCall::PolkadotXcm(
-				RuntimeCall::System(
+				pallet_xcm::Call::force_xcm_version { .. } |
-					frame_system::Call::set_heap_pages { .. } |
+					pallet_xcm::Call::force_default_xcm_version { .. }
-						frame_system::Call::set_code { .. } |
+			) | RuntimeCall::System(
-						frame_system::Call::set_code_without_checks { .. } |
+				frame_system::Call::set_heap_pages { .. } |
-						frame_system::Call::kill_prefix { .. },
+					frame_system::Call::set_code { .. } |
-				) | RuntimeCall::ParachainSystem(..) |
+					frame_system::Call::set_code_without_checks { .. } |
+					frame_system::Call::kill_prefix { .. },
+			) | RuntimeCall::ParachainSystem(..) |
 				RuntimeCall::Timestamp(..) |
 				RuntimeCall::Balances(..) |
 				RuntimeCall::CollatorSelection(

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-rococo/src/lib.rs

@@ -498,7 +498,7 @@ construct_runtime!(
 
 		// XCM helpers.
 		XcmpQueue: cumulus_pallet_xcmp_queue::{Pallet, Call, Storage, Event<T>} = 30,
-		PolkadotXcm: pallet_xcm::{Pallet, Call, Event<T>, Origin, Config<T>} = 31,
+		PolkadotXcm: pallet_xcm::{Pallet, Call, Storage, Event<T>, Origin, Config<T>} = 31,
 		CumulusXcm: cumulus_pallet_xcm::{Pallet, Event<T>, Origin} = 32,
 		DmpQueue: cumulus_pallet_dmp_queue::{Pallet, Call, Storage, Event<T>} = 33,
 

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-rococo/src/xcm_config.rs

@@ -161,13 +161,15 @@ impl Contains<RuntimeCall> for SafeCallFilter {
 
 		matches!(
 			call,
-			RuntimeCall::PolkadotXcm(pallet_xcm::Call::force_xcm_version { .. }) |
+			RuntimeCall::PolkadotXcm(
-				RuntimeCall::System(
+				pallet_xcm::Call::force_xcm_version { .. } |
-					frame_system::Call::set_heap_pages { .. } |
+					pallet_xcm::Call::force_default_xcm_version { .. }
-						frame_system::Call::set_code { .. } |
+			) | RuntimeCall::System(
-						frame_system::Call::set_code_without_checks { .. } |
+				frame_system::Call::set_heap_pages { .. } |
-						frame_system::Call::kill_prefix { .. },
+					frame_system::Call::set_code { .. } |
-				) | RuntimeCall::ParachainSystem(..) |
+					frame_system::Call::set_code_without_checks { .. } |
+					frame_system::Call::kill_prefix { .. },
+			) | RuntimeCall::ParachainSystem(..) |
 				RuntimeCall::Timestamp(..) |
 				RuntimeCall::Balances(..) |
 				RuntimeCall::CollatorSelection(

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-westend/src/lib.rs

@@ -497,7 +497,7 @@ construct_runtime!(
 
 		// XCM helpers.
 		XcmpQueue: cumulus_pallet_xcmp_queue::{Pallet, Call, Storage, Event<T>} = 30,
-		PolkadotXcm: pallet_xcm::{Pallet, Call, Event<T>, Origin, Config<T>} = 31,
+		PolkadotXcm: pallet_xcm::{Pallet, Call, Storage, Event<T>, Origin, Config<T>} = 31,
 		CumulusXcm: cumulus_pallet_xcm::{Pallet, Event<T>, Origin} = 32,
 		DmpQueue: cumulus_pallet_dmp_queue::{Pallet, Call, Storage, Event<T>} = 33,
 

cumulus/parachains/runtimes/bridge-hubs/bridge-hub-westend/src/xcm_config.rs

@@ -150,13 +150,15 @@ impl Contains<RuntimeCall> for SafeCallFilter {
 
 		matches!(
 			call,
-			RuntimeCall::PolkadotXcm(pallet_xcm::Call::force_xcm_version { .. }) |
+			RuntimeCall::PolkadotXcm(
-				RuntimeCall::System(
+				pallet_xcm::Call::force_xcm_version { .. } |
-					frame_system::Call::set_heap_pages { .. } |
+					pallet_xcm::Call::force_default_xcm_version { .. }
-						frame_system::Call::set_code { .. } |
+			) | RuntimeCall::System(
-						frame_system::Call::set_code_without_checks { .. } |
+				frame_system::Call::set_heap_pages { .. } |
-						frame_system::Call::kill_prefix { .. },
+					frame_system::Call::set_code { .. } |
-				) | RuntimeCall::ParachainSystem(..) |
+					frame_system::Call::set_code_without_checks { .. } |
+					frame_system::Call::kill_prefix { .. },
+			) | RuntimeCall::ParachainSystem(..) |
 				RuntimeCall::Timestamp(..) |
 				RuntimeCall::Balances(..) |
 				RuntimeCall::CollatorSelection(

cumulus/parachains/runtimes/collectives/collectives-westend/src/xcm_config.rs

@@ -178,8 +178,10 @@ impl Contains<RuntimeCall> for SafeCallFilter {
 						pallet_collator_selection::Call::add_invulnerable { .. } |
 						pallet_collator_selection::Call::remove_invulnerable { .. },
 				) | RuntimeCall::Session(pallet_session::Call::purge_keys { .. }) |
-				RuntimeCall::PolkadotXcm(pallet_xcm::Call::force_xcm_version { .. }) |
+				RuntimeCall::PolkadotXcm(
-				RuntimeCall::XcmpQueue(..) |
+					pallet_xcm::Call::force_xcm_version { .. } |
+						pallet_xcm::Call::force_default_xcm_version { .. }
+				) | RuntimeCall::XcmpQueue(..) |
 				RuntimeCall::MessageQueue(..) |
 				RuntimeCall::Alliance(
 					// `init_members` accepts unbounded vecs as arguments,