Upgrade Pallets to FRAME v2

[shawntabrizi]

There are a number of custom Polkadot pallets in this repo, and we could use help to migrate them to the new v2 macro.

The pallets which are already live need to check that they won't break, but new pallets like the onboarding systems should get migrated before they are put live on the network.

• auctions (Update auctions pallet to FRAME v2 #3031)
• claims (Update claims pallet to FRAME v2 #3032)
• crowdloans (Update crowdloan pallet to FRAME v2 #3036)
• mmr (Update mmr pallet to FRAME v2 #3061)
• registrar (Update registrar pallet to FRAME v2 #3063)
• sudo wrapper (Update para sudo wrapper pallet to FRAME v2 #3074)
• purchase (Update purchase pallet to FRAME v2 #3075)
• slots (Update slots pallet to FRAME v2 #3218)
• runtime > parachains (a lot in here)

[shaunxw]

XCM sender doesn't need migration as it's not a pallet. Migrations in runtime > common are done.

[ferrell-code]

Once the last three are merged all the parachains pallets will have been migrated.

With a quick grep I see that there is one small validator_manager.rs pallet in rococo and a few pallets in bridges still using the old macro. Not sure on the long term use of these but they may need to be migrated as well

🐲

[shawntabrizi]

thanks @ferrell-code !

probably we want to migrate the bridge pallet stuff, but we can open a new issue for that and have the bridge team track it cc @HCastano @tomusdrw

[HCastano]

Yeah, @ferrell-code feel free to open an issue and/or PRs in the parity-bridges-common repo