Revert "pallet-xcm: Deprecate `execute` and `send` in favor of
`execute_blob` and `send_blob` (#3749)"

This reverts commit feee773d

.

---------

Co-authored-by: Adrian Catangiu <[email protected]>
Co-authored-by: Javier Bullrich <[email protected]>

`execute` and `send` try to decode the xcm in the parameters before
reaching the filter line.
The new extrinsics decode only after the filter line.
These should be used instead of the old ones.

## TODO
- [x] Tests
- [x] Generate weights
- [x] Deprecation issue ->
https://github.com/paritytech/polkadot-sdk/issues/3771
- [x] PRDoc
- [x] Handle error in pallet-contracts

This would make writing XCMs in PJS Apps more difficult, but here's the
fix for that: https://github.com/polkadot-js/apps/pull/10350.
Already deployed! https://polkadot.js.org/apps/#/utilities/xcm

Supersedes https://github.com/paritytech/polkadot-sdk/pull/1798/



---------

Co-authored-by: PG Herveou <[email protected]>
Co-authored-by: command-bot <>
Co-authored-by: Adrian Catangiu <[email protected]>

If an XCM execution fails or ends with leftover assets, these will be
trapped.
In order to claim them, a custom XCM has to be executed, with the
`ClaimAsset` instruction.
However, arbitrary XCM execution is not allowed everywhere yet and XCM
itself is still not easy enough to use for users out there with trapped
assets.
This new extrinsic in `pallet-xcm` will allow these users to easily
claim their assets, without concerning themselves with writing arbitrary
XCMs.

Part of fixing https://github.com/paritytech/polkadot-sdk/issues/3495



---------

Co-authored-by: command-bot <>
Co-authored-by: Adrian Catangiu <[email protected]>

Co-authored-by: command-bot <>

New runtimes for the Coretime Chain (a.k.a. "Broker Chain") described in
RFC-1.

Replaces https://github.com/paritytech/cumulus/pull/2889


- [x] Add Agile Coretime pallet
https://github.com/paritytech/substrate/pull/14568
- [x] Generate chain specs for local and testnets
- [x] Deploy parachain on Rococo - Done:
[rococo-coretime-rpc.polkadot.io](https://polkadot.js.org/apps/?rpc=wss%3A%2F%2Frococo-coretime-rpc.polkadot.io#/explorer)

DevOps issue for Aura keygen:
https://github.com/paritytech/devops/issues/2725



Edit (Dónal): This PR is mainly for Rococo, the Westend runtime is a
shell with no `Broker` pallet. The Rococo runtime has the broker calls
filtered for initial deployment.

---------

Co-authored-by: Dónal Murray <[email protected]>
Co-authored-by: 0xmovses <[email protected]>
Co-authored-by: Liam Aharon <[email protected]>
Co-authored-by: Bastian Köcher <[email protected]>
Co-authored-by: Marcin S. <[email protected]>
Co-authored-by: Bastian Köcher <[email protected]>
Co-authored-by: command-bot <>
Co-authored-by: Branislav Kontur <[email protected]>

# Motivation (+testing)

### Enable easy `ForeignAssets` transfers using `pallet-xcm` 

We had just previously added capabilities to teleport fees during
reserve-based transfers, but what about reserve-transferring fees when
needing to teleport some non-fee asset?

This PR aligns everything under either explicit reserve-transfer,
explicit teleport, or this new flexible `transfer_assets()` which can
mix and match as needed with fewer artificial constraints imposed to the
user.

This will enable, for example, a (non-system) parachain to teleport
their `ForeignAssets` assets to AssetHub while using DOT to pay fees.
(the assets are teleported - as foreign assets should from their owner
chain - while DOT used for fees can only be reserve-based transferred
between said parachain and AssetHub).

Added `xcm-emulator` tests for this scenario ^.

# Description

Reverts `(limited_)reserve_transfer_assets` to only allow reserve-based
transfers for all `assets` including fees.

Similarly `(limited_)teleport_assets` only allows teleports for all
`assets` including fees.
    
For complex combinations of asset transfers where assets and fees may
have different reserves or different reserve/teleport trust
configurations, users can use the newly added `transfer_assets()`
extrinsic which is more flexible in allowing more complex scenarios.

`assets` (excluding `fees`) must have same reserve location or otherwise
be teleportable to `dest`.
No limitations imposed on `fees`.

- for local reserve: transfer assets to sovereign account of destination
chain and forward a notification XCM to `dest` to mint and deposit
reserve-based assets to `beneficiary`.
- for destination reserve: burn local assets and forward a notification
to `dest` chain to withdraw the reserve assets from this chain's
sovereign account and deposit them to `beneficiary`.
- for remote reserve: burn local assets, forward XCM to reserve chain to
move reserves from this chain's SA to `dest` chain's SA, and forward
another XCM to `dest` to mint and deposit reserve-based assets to
`beneficiary`.
- for teleports: burn local assets and forward XCM to `dest` chain to
mint/teleport assets and deposit them to `beneficiary`.

## Review notes

Only around 500 lines are prod code (see `pallet_xcm/src/lib.rs`), the
rest of the PR is new tests and improving existing tests.

---------

Co-authored-by: command-bot <>

We are introducing a new set of `XcmController` traits (final name yet
to be determined).
These traits are implemented by `pallet-xcm` and allows other pallets,
such as `pallet_contracts`, to rely on these traits instead of tight
coupling them to `pallet-xcm`.

Using only the existing Xcm traits would mean duplicating the logic from
`pallet-xcm` in these other pallets, which we aim to avoid. Our
objective is to ensure that when these APIs are called from
`pallet-contracts`, they produce the exact same outcomes as if called
directly from `pallet-xcm`.

The other benefits is that we can also expose return values to
`pallet-contracts` instead of just calling `pallet-xcm` dispatchable and
getting a `DispatchResult` back.

See traits integration in this PR
https://github.com/paritytech/polkadot-sdk/pull/1248

, where the traits
are used as follow to define and implement `pallet-contracts` Config.
```rs
// Contracts config:
pub trait Config: frame_system::Config {
  // ...

  /// A type that exposes XCM APIs, allowing contracts to interact with other parachains, and
  /// execute XCM programs.
  type Xcm: xcm_executor::traits::Controller<
	  OriginFor<Self>,
	  <Self as frame_system::Config>::RuntimeCall,
	  BlockNumberFor<Self>,
  >;
}

// implementation
impl pallet_contracts::Config for Runtime {
        // ...

	type Xcm = pallet_xcm::Pallet<Self>;
}
```

---------

Co-authored-by: Alexander Theißen <[email protected]>
Co-authored-by: command-bot <>

(imported from https://github.com/paritytech/cumulus/pull/2157)

## Changes

This MR refactores the XCMP, Parachains System and DMP pallets to use
the [MessageQueue](https://github.com/paritytech/substrate/pull/12485)
for delayed execution of incoming messages. The DMP pallet is entirely
replaced by the MQ and thereby removed. This allows for PoV-bounded
execution and resolves a number of issues that stem from the current
work-around.

All System Parachains adopt this change.  
The most important changes are in `primitives/core/src/lib.rs`,
`parachains/common/src/process_xcm_message.rs`,
`pallets/parachain-system/src/lib.rs`, `pallets/xcmp-queue/src/lib.rs`
and the runtime configs.

### DMP Queue Pallet

The pallet got removed and its logic refactored into parachain-system.
Overweight message management can be done directly through the MQ
pallet.

Final undeployment migrations are provided by
`cumulus_pallet_dmp_queue::UndeployDmpQueue` and `DeleteDmpQueue` that
can be configured with an aux config trait like:

```rust
parameter_types! {
	pub const DmpQueuePalletName: &'static str = \"DmpQueue\" < CHANGE ME;
	pub const RelayOrigin: AggregateMessageOrigin = AggregateMessageOrigin::Parent;
}

impl cumulus_pallet_dmp_queue::MigrationConfig for Runtime {
	type PalletName = DmpQueuePalletName;
	type DmpHandler = frame_support::traits::EnqueueWithOrigin<MessageQueue, RelayOrigin>;
	type DbWeight = <Runtime as frame_system::Config>::DbWeight;
}

// And adding them to your Migrations tuple:
pub type Migrations = (
	...
	cumulus_pallet_dmp_queue::UndeployDmpQueue<Runtime>,
	cumulus_pallet_dmp_queue::DeleteDmpQueue<Runtime>,
);
```

### XCMP Queue pallet

Removed all dispatch queue functionality. Incoming XCMP messages are now
either: Immediately handled if they are Signals, enqueued into the MQ
pallet otherwise.

New config items for the XCMP queue pallet:
```rust
/// The actual queue implementation that retains the messages for later processing.
type XcmpQueue: EnqueueMessage<ParaId>;

/// How a XCM over HRMP from a sibling parachain should be processed.
type XcmpProcessor: ProcessMessage<Origin = ParaId>;

/// The maximal number of suspended XCMP channels at the same time.
#[pallet::constant]
type MaxInboundSuspended: Get<u32>;
```

How to configure those:

```rust
// Use the MessageQueue pallet to store messages for later processing. The `TransformOrigin` is needed since
// the MQ pallet itself operators on `AggregateMessageOrigin` but we want to enqueue `ParaId`s.
type XcmpQueue = TransformOrigin<MessageQueue, AggregateMessageOrigin, ParaId, ParaIdToSibling>;

// Process XCMP messages from siblings. This is type-safe to only accept `ParaId`s. They will be dispatched
// with origin `Junction::Sibling(…)`.
type XcmpProcessor = ProcessFromSibling<
	ProcessXcmMessage<
		AggregateMessageOrigin,
		xcm_executor::XcmExecutor<xcm_config::XcmConfig>,
		RuntimeCall,
	>,
>;

// Not really important what to choose here. Just something larger than the maximal number of channels.
type MaxInboundSuspended = sp_core::ConstU32<1_000>;
```

The `InboundXcmpStatus` storage item was replaced by
`InboundXcmpSuspended` since it now only tracks inbound queue suspension
and no message indices anymore.

Now only sends the most recent channel `Signals`, as all prio ones are
out-dated anyway.

### Parachain System pallet

For `DMP` messages instead of forwarding them to the `DMP` pallet, it
now pushes them to the configured `DmpQueue`. The message processing
which was triggered in `set_validation_data` is now being done by the MQ
pallet `on_initialize`.

XCMP messages are still handed off to the `XcmpMessageHandler`
(XCMP-Queue pallet) - no change here.

New config items for the parachain system pallet:
```rust
/// Queues inbound downward messages for delayed processing. 
///
/// Analogous to the `XcmpQueue` of the XCMP queue pallet.
type DmpQueue: EnqueueMessage<AggregateMessageOrigin>;
``` 

How to configure:
```rust
/// Use the MQ pallet to store DMP messages for delayed processing.
type DmpQueue = MessageQueue;
``` 

## Message Flow

The flow of messages on the parachain side. Messages come in from the
left via the `Validation Data` and finally end up at the `Xcm Executor`
on the right.

![Untitled
(1)](https://github.com/paritytech/cumulus/assets/10380170/6cf8b377-88c9-4aed-96df-baace266e04d)

## Further changes

- Bumped the default suspension, drop and resume thresholds in
`QueueConfigData::default()`.
- `XcmpQueue::{suspend_xcm_execution, resume_xcm_execution}` errors when
they would be a noop.
- Properly validate the `QueueConfigData` before setting it.
- Marked weight files as auto-generated so they wont auto-expand in the
MR files view.
- Move the `hypothetical` asserts to `frame_support` under the name
`experimental_hypothetically`

Questions:
- [ ] What about the ugly `#[cfg(feature = \"runtime-benchmarks\")]` in
the runtimes? Not sure how to best fix. Just having them like this makes
tests fail that rely on the real message processor when the feature is
enabled.
- [ ] Need a good weight for `MessageQueueServiceWeight`. The scheduler
already takes 80% so I put it to 10% but that is quite low.

TODO:
- [x] Remove c&p code after
https://github.com/paritytech/polkadot/pull/6271
- [x] Use `HandleMessage` once it is public in Substrate
- [x] fix `runtime-benchmarks` feature
https://github.com/paritytech/polkadot/pull/6966


- [x] Benchmarks
- [x] Tests
- [ ] Migrate `InboundXcmpStatus` to `InboundXcmpSuspended`
- [x] Possibly cleanup Migrations (DMP+XCMP)
- [x] optional: create `TransformProcessMessageOrigin` in Substrate and
replace `ProcessFromSibling`
- [ ] Rerun weights on ref HW

---------

Signed-off-by: Oliver Tale-Yazdi <[email protected]>
Co-authored-by: Liam Aharon <[email protected]>
Co-authored-by: joe petrowski <[email protected]>
Co-authored-by: Kian Paimani <[email protected]>
Co-authored-by: command-bot <>

* Add missing Cumulus licenses

* Typo

* Add missing Substrate licenses

* Single job checking the sub-repos in steps

* Remove dates

* Remove dates

* Add missing (C)

* Update FRAME UI tests

Signed-off-by: Oliver Tale-Yazdi <[email protected]>

* Update more UI tests

Signed-off-by: Oliver Tale-Yazdi <[email protected]>

---------

Signed-off-by: Oliver Tale-Yazdi <[email protected]>
Co-authored-by: Oliver Tale-Yazdi <[email protected]>

* paritytech/ci-cd#697: Update weights with VM runners

 - Update weights using VM instances
 - Change runner tag for weights ci job to weights-vm

* ".git/.scripts/commands/bench/bench.sh" all

* ".git/.scripts/commands/bench-all/bench-all.sh" --target_dir=cumulus

---------

Co-authored-by: parity-processbot <>
Co-authored-by: Branislav Kontur <[email protected]>

* [benchmarks] pr with weights (#2667)

Co-authored-by: paritytech-ci <[email protected]>

* [benchmarks] pr with weights (#2668)

Co-authored-by: paritytech-ci <[email protected]>

* [benchmarks] pr with weights (#2669)

co-authored-by: paritytech-ci <[email protected]>

---------

Co-authored-by: Paritytech CI <[email protected]>
Co-authored-by: paritytech-ci <[email protected]>

* [benchmarks] Update weights for collectives (#2532)

* [benchmarks] pr with weights

* bump zombienet version (#2525)

* bump zombienet version

* fix para registration args

---------

Co-authored-by: paritytech-ci <[email protected]>
Co-authored-by: Javier Viola <[email protected]>

* [benchmarks] Update weights for bridge-hubs (#2533)

* [benchmarks] pr with weights

* bump zombienet version (#2525)

* bump zombienet version

* fix para registration args

---------

Co-authored-by: paritytech-ci <[email protected]>
Co-authored-by: Javier Viola <[email protected]>

* [benchmarks] Update weights for statemine/t (#2535)

* [benchmarks] pr with weights

* bump zombienet version (#2525)

* bump zombienet version

* fix para registration args

---------

Co-authored-by: paritytech-ci <[email protected]>
Co-authored-by: Javier Viola <[email protected]>

---------

Co-authored-by: Paritytech CI <[email protected]>
Co-authored-by: paritytech-ci <[email protected]>
Co-authored-by: Javier Viola <[email protected]>

* Companion for paritytech/polkadot#7098

* Fixes

* Add missing benchmarked function

* Fix typo

* update lockfile for {"polkadot", "substrate"}

---------

Co-authored-by: parity-processbot <>

* [benchmarks] pr with weights (#2373)

Co-authored-by: paritytech-ci <[email protected]>

* [benchmarks] pr with weights (#2374)

Co-authored-by: paritytech-ci <[email protected]>

* [benchmarks] pr with weights (#2375)

Co-authored-by: paritytech-ci <[email protected]>

* Proof size in test wasn't sufficient

(due to updated weights.)

---------

Co-authored-by: Paritytech CI <[email protected]>
Co-authored-by: paritytech-ci <[email protected]>
Co-authored-by: Giles Cope <[email protected]>

* Migrate to from_parts

Signed-off-by: Oliver Tale-Yazdi <[email protected]>

* Fix remaining files

Signed-off-by: Oliver Tale-Yazdi <[email protected]>

* cargo update -p polkadot-primitives

Signed-off-by: Oliver Tale-Yazdi <[email protected]>

* cargo update -p sp-io

Signed-off-by: Oliver Tale-Yazdi <[email protected]>

* Use Master Cargo.lock

Signed-off-by: Oliver Tale-Yazdi <[email protected]>

* cargo update -p polkadot-primitives

Signed-off-by: Oliver Tale-Yazdi <[email protected]>

* cargo update -p sp-io

Signed-off-by: Oliver Tale-Yazdi <[email protected]>

---------

Signed-off-by: Oliver Tale-Yazdi <[email protected]>

* [WIP][ci] Return benchmark to bm machines

* run build on docker machines

* restart pipeline

* rm docker runner

* fix refs

* add weights

* return ci

* fix asset benchmark

* Fixes

* Undiener

* Undiener

* Undiener

* Lockfile

* Changes for send returning hash

* Include message ID as params to execute_xcm

* Fixes

* Fixes

* Fixes

* Fixes

* Fixes

* Fixes

* Companion fixes

* Formatting

* Fixes

* Formatting

* Bump

* Bump

* Fixes

* Formatting

* Make the price of UMP/XCMP message sending configurable

* cargo fmt

* Remove InvertLocation

* Formatting

* Use ConstantPrice from polkadot-runtime-common

* Fix naming

* cargo fmt

* Fixes

* Fixes

* Fixes

* Add CallDispatcher

* Fixes

* Fixes

* Fixes

* Fixes

* Fixes

* Fixes

* Fixes

* Fixes

* Fixes

* Fixes

* Fixes

* Fixes

* Fixes

* Fixes

* Fixes

* Fixes

* Fixes

* Fixes

* Fixes

* Remove unused import

* Remove unused import

* XCMv3 fixes (#1710)

* Fixes XCMv3 related
Fixes XCMv3 (removed query_holding)
Fixes XCMv3 - should use _depositable_count?
Fixes XCMv3 - removed TrustedReserve
Fixes - missing weights for statemine/statemint/westmint
[DO-NOT-CHERRY-PICK] tmp return query_holding to aviod conficts to master
Fixes - missing functions for pallet_xcm_benchmarks::generic::Config
Fixes for XCMv3 benchmarking
Fix xcm - removed query_holding

* ".git/.scripts/bench-bot.sh" xcm statemine assets pallet_xcm_benchmarks::generic

* ".git/.scripts/bench-bot.sh" xcm statemint assets pallet_xcm_benchmarks::generic

* ".git/.scripts/bench-bot.sh" xcm westmint assets pallet_xcm_benchmarks::generic

* Fix imports

* Avoid consuming XCM message for NotApplicable scenario (#1787)

* Avoid consuming message for NotApplicable scenario

* Avoid consuming message for NotApplicable scenario tests

* Add 10 message processing limit to DMP queue

* Add 10 message limit to XCMP queue

* Always increment the message_processed count whenever a message is processed

* Fix formatting

* Set an upper limit to the overweight message DMP queue

* Add upper limit to XCMP overweight message queue

* Fix for missing weight for `fn unpaid_execution()`

* Fix - usage of `messages_processed`

* Fixes

* Fixes

* Fixes

* cargo fmt

* Fixes

* Fixes

* Fixes

* Fixes

* Remove unused import

* Fixes for gav-xcm-v3 (#1835)

* Fix for FungiblesAdapter - trait changes: Contains -> AssetChecking

* Fix for missing weight for `fn unpaid_execution()`

* Used NonLocalMint for all NonZeroIssuance

* Fix

* Fixes

* Fixes

* Fixes

* Fixes

* Fixes

* Fix tests

* Fixes

* Add SafeCallFilter

* Add missing config items

* Add TODO

* Use () as the PriceForParentDelivery

* Fixes

* Fixes

* Fixes

* Fixes

* Update transact_origin to transact_origin_and_runtime_call

* Add ReachableDest config item to XCM pallet

* Update SafeCallFilter to allow remark_with_event in runtime benchmarks

* cargo fmt

* Update substrate

* Fix worst_case_holding

* Fix DMQ queue unit tests

* Remove unused label

* cargo fmt

* Actually process incoming XCMs

* Fixes

* Fixes

* Fixes

* Fixes - return back Weightless

* Added measured benchmarks for `pallet_xcm` (#1968)

* Fix

Fix

Fix

* Fix

* Fixes for transact benchmark

* Fixes add pallet_xcm to benchmarks

* Revert remark_with_event

* ".git/.scripts/bench-bot.sh" xcm statemine assets pallet_xcm_benchmarks::generic

* Fixes

* TMP

* Fix for reserve_asset_deposited

* ".git/.scripts/bench-bot.sh" pallet statemine assets pallet_xcm

* Fix

* ".git/.scripts/bench-bot.sh" pallet statemint assets pallet_xcm

* Fix

* ".git/.scripts/bench-bot.sh" pallet westmint assets pallet_xcm

* Fix westmint

* ".git/.scripts/bench-bot.sh" xcm statemine assets pallet_xcm_benchmarks::generic

* Fix

* ".git/.scripts/bench-bot.sh" xcm westmint assets pallet_xcm_benchmarks::generic

* ".git/.scripts/bench-bot.sh" xcm statemint assets pallet_xcm_benchmarks::generic

* ".git/.scripts/bench-bot.sh" pallet collectives-polkadot collectives pallet_xcm

* Fix for collectives

* ".git/.scripts/bench-bot.sh" pallet bridge-hub-kusama bridge-hubs pallet_xcm

* ".git/.scripts/bench-bot.sh" pallet bridge-hub-rococo bridge-hubs pallet_xcm

* Fixes for bridge-hubs

* Fixes - return back Weightless

* Fix - removed MigrateToTrackInactive for contracts-rococo

Co-authored-by: command-bot <>

* cargo fmt

* Fix benchmarks

* Bko gav xcm v3 (#1993)

* Fix

* ".git/.scripts/bench-bot.sh" xcm statemint assets pallet_xcm_benchmarks::fungible

* ".git/.scripts/bench-bot.sh" xcm statemine assets pallet_xcm_benchmarks::fungible

* ".git/.scripts/bench-bot.sh" xcm westmint assets pallet_xcm_benchmarks::fungible

* ".git/.scripts/bench-bot.sh" xcm statemine assets pallet_xcm_benchmarks::generic

* ".git/.scripts/bench-bot.sh" xcm statemint assets pallet_xcm_benchmarks::generic

* ".git/.scripts/bench-bot.sh" xcm westmint assets pallet_xcm_benchmarks::generic

* ".git/.scripts/bench-bot.sh" pallet statemine assets pallet_xcm

* ".git/.scripts/bench-bot.sh" pallet westmint assets pallet_xcm

* ".git/.scripts/bench-bot.sh" pallet statemint assets pallet_xcm

* ".git/.scripts/bench-bot.sh" pallet collectives-polkadot collectives pallet_xcm

* ".git/.scripts/bench-bot.sh" pallet bridge-hub-kusama bridge-hubs pallet_xcm

* ".git/.scripts/bench-bot.sh" pallet bridge-hub-rococo bridge-hubs pallet_xcm

Co-authored-by: command-bot <>

* Change AllowUnpaidExecutionFrom to be explicit

* xcm-v3 benchmarks, weights, fixes for bridge-hubs (#2035)

* Dumy weights to get compile

* Change UniversalLocation according to https://github.com/paritytech/polkadot/pull/4097

 (Location Inversion Removed)

* Fix bridge-hubs weights

* ".git/.scripts/bench-bot.sh" pallet statemine assets pallet_xcm

* ".git/.scripts/bench-bot.sh" pallet statemint assets pallet_xcm

* ".git/.scripts/bench-bot.sh" pallet collectives-polkadot collectives pallet_xcm

* ".git/.scripts/bench-bot.sh" pallet westmint assets pallet_xcm

* ".git/.scripts/bench-bot.sh" xcm bridge-hub-kusama bridge-hubs pallet_xcm_benchmarks::generic

* ".git/.scripts/bench-bot.sh" xcm bridge-hub-kusama bridge-hubs pallet_xcm_benchmarks::fungible

* ".git/.scripts/bench-bot.sh" pallet bridge-hub-kusama bridge-hubs pallet_xcm

* ".git/.scripts/bench-bot.sh" pallet bridge-hub-rococo bridge-hubs pallet_xcm

* ".git/.scripts/bench-bot.sh" xcm bridge-hub-rococo bridge-hubs pallet_xcm_benchmarks::fungible

* ".git/.scripts/bench-bot.sh" xcm bridge-hub-rococo bridge-hubs pallet_xcm_benchmarks::generic

* Change NetworkId to Option<NetworkId>

Co-authored-by: command-bot <>
Co-authored-by: Keith Yeung <[email protected]>

* Add event for showing the hash of an UMP sent message (#1228)

* Add UpwardMessageSent event in parachain-system

* additional fixes

* Message Id

* Fix errors from merge

* fmt

* more fmt

* Remove todo

* more formatting

* Fixes

* Fixes

* Fixes

* Fixes

* Allow explicit unpaid executions from the relay chains for system parachains (#2060)

* Allow explicit unpaid executions from the relay chains for system parachains

* Put origin-filtering barriers into WithComputedOrigin

* Use ConstU32<8>

* Small nits

* formatting

* cargo fmt

* Allow receiving XCMs from any relay chain plurality

* Fixes

* update lockfile for {"polkadot", "substrate"}

* Update polkadot

* Add runtime-benchmarks feature

Co-authored-by: Keith Yeung <[email protected]>
Co-authored-by: Branislav Kontur <[email protected]>
Co-authored-by: girazoki <[email protected]>
Co-authored-by: parity-processbot <>