* Fix for issue #2403

* Nightly fmt

* Quick documentation fixes

* Default Implementation

* iter() function integrated

* Implemented iter functionalities

* Fmt

* small change

* updates node-network

* updates in dispute-coordinator

* Updates

* benchmarking fix

* minor fix

* test fixes in runtime api

* Update primitives/src/v2/mod.rs

Co-authored-by: Andronik <[email protected]>

* Update primitives/src/v2/mod.rs

Co-authored-by: Andronik <[email protected]>

* Update primitives/src/v2/mod.rs

Co-authored-by: Andronik <[email protected]>

* Update primitives/src/v2/mod.rs

Co-authored-by: Andronik <[email protected]>

* Update primitives/src/v2/mod.rs

Co-authored-by: Andronik <[email protected]>

* Removal of [index], shorting of FromIterator, Renaming of GroupValidators to ValidatorGroups

* Removal of ops import

* documentation fixes for spell check

* implementation of generic type

* Refactoring

* Test and documentation fixes

* minor test fix

* minor test fix

* minor test fix

* Update node/network/statement-distribution/src/lib.rs

Co-authored-by: Andronik <[email protected]>

* Update primitives/src/v2/mod.rs

Co-authored-by: Andronik <[email protected]>

* Update primitives/src/v2/mod.rs

Co-authored-by: Andronik <[email protected]>

* removed IterMut

* Update node/core/dispute-coordinator/src/import.rs

Co-authored-by: Andronik <[email protected]>

* Update node/core/dispute-coordinator/src/initialized.rs

Co-authored-by: Andronik <[email protected]>

* Update primitives/src/v2/mod.rs

Co-authored-by: Andronik <[email protected]>

* fmt

* IterMut

* documentation update

Co-authored-by: Andronik <[email protected]>

* minor adjustments and new TypeIndex trait

* spelling fix

* TypeIndex fix

Co-authored-by: Andronik <[email protected]>

Disputes which are unknown for the Runtime are sent with priority by the Provisioner when preparing inherent data (#5336)

* Implement MallocSizeOf for DisputeState

* Implementation of `Disputes` Runtime API message

* Modify on-chain dispute import

* Add feature flag for the new functionality

* Update node/core/provisioner/src/onchain_disputes.rs

Co-authored-by: Andrei Sandu <[email protected]>

* Add target to log messages

* Update node/core/provisioner/src/lib.rs

Co-authored-by: Andronik <[email protected]>

* Use `staging-client` feature to enable the client code using the staging runtime api

* Remove TODO comment

* Don't filter out DisputeState

* Fix disputes selection logic

* spelling

* Tests

* Rename `Disputes` message to `StagingDisputes`

* Update node/core/provisioner/src/lib.rs

Co-authored-by: Bernhard Schuster <[email protected]>

* Code review feedback

- Logging
- Separate error module
- Add additional fields for GetOnchainDisputesErr
- logging and impl MallocSizeOf
- fix impl MallocSizeOf for DisputeState
- fix tests

* Update node/core/provisioner/src/error.rs

Co-authored-by: Andronik <[email protected]>

* Update node/core/provisioner/src/lib.rs

Co-authored-by: Andronik <[email protected]>

* Update node/core/provisioner/src/lib.rs

Co-authored-by: Andronik <[email protected]>

* Apply suggestions from code review

dummy metrics instance

Co-authored-by: Bernhard Schuster <[email protected]>

* Revert "Apply suggestions from code review"

This reverts commit 6dc518cbf77e037ff4760d315938a68c806e662e.

* Code review feedback: #[cfg(test)] for new_dummy() in metrics

* Code review feedback: break the disputes generation logic in separate functions

* Code review feedback - align_eight

Co-authored-by: Andrei Sandu <[email protected]>
Co-authored-by: Andronik <[email protected]>
Co-authored-by: Bernhard Schuster <[email protected]>

* Move `trait ParachainHost` to a separate version independent module

`trait ParachainHost` is no longer part of a specific primitives
version. Instead there is a single trait for stable and staging api
versions. The trait contains stable AND staging methods. The latter are
explicitly marked as unstable.

* Fix `use` primitives

`polkadot_primitives::v2` becomes `polkadot_primitives::runtime_api`

* Staging API declaration and stubs

Introduces the concept for 'staging functions' in runtime API. These
functions are still in testing and they are meant to be used only
within test networks (Westend).
They coexist with the stable calls for technical reasons - maintaining
different runtime APIs for different networks is hard to implement.

Check the doc comments in source files for more details how the staging
API should be used.

* Add new staging method - get_session_disputes()

Add `staging_get_session_disputes` to `ParachainHost` as the first
method of the staging API.

* Hide vstaging runtime api implementations  behind feature flag

* Fix test runtime

* fn staging_get_session_disputes() is renamed to fn staging_get_disputes()

* add epoch index to well known keys

* fmt

* allow converting payloads _up_

* convert to superpayload in statement-distribution

* Update primitives/src/v2/signed.rs

Co-authored-by: Andronik <[email protected]>

Co-authored-by: Andronik <[email protected]>

* add babe randomness storage keys to well known keys

* Update primitives/src/v1/mod.rs

Co-authored-by: Bastian Köcher <[email protected]>

* 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

This is the first step to close
https://github.com/paritytech/polkadot/issues/4524

* 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 <[email protected]>