implement dispatch_as

[xlc]

Companion for paritytech/substrate#9934

cumulus companion: paritytech/cumulus#715

[KiChjang]

Crud, this requires an update to cumulus as well it seems:

  error[E0046]: not all trait items implemented, missing: `PalletsOrigin`
     --> /builds/parity/polkadot/cumulus/polkadot-parachains/statemine/src/lib.rs:302:1
      |
  302 | impl pallet_utility::Config for Runtime {
      | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `PalletsOrigin` in implementation
      |
      = help: implement the missing item: `type PalletsOrigin = Type;`
  error[E0046]: not all trait items implemented, missing: `dispatch_as`
    --> /builds/parity/polkadot/cumulus/polkadot-parachains/statemine/src/weights/pallet_utility.rs:28:1
     |
  28 | impl<T: frame_system::Config> pallet_utility::WeightInfo for WeightInfo<T> {
     | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ missing `dispatch_as` in implementation
     |
     = help: implement the missing item: `fn dispatch_as() -> u64 { todo!() }`
  For more information about this error, try `rustc --explain E0046`.
  error: could not compile `statemine-runtime` due to 2 previous errors

[KiChjang]

Ah, found it: paritytech/cumulus#715

[shawntabrizi]

bot merge

[paritytech-processbot]

Error: Response error (status 404 Not Found):

{"documentation_url":"https://docs.github.com/rest/reference/pulls#get-a-pull-request","message":"Not Found"}