Make a few things for staking miner (#9241)

substrate/frame/election-provider-multi-phase/src/lib.rs

@@ -1294,14 +1294,14 @@ impl<T: Config> Pallet<T> {
 	}
 
 	/// Kill everything created by [`Pallet::create_snapshot`].
-	pub(crate) fn kill_snapshot() {
+	pub fn kill_snapshot() {
 		<Snapshot<T>>::kill();
 		<SnapshotMetadata<T>>::kill();
 		<DesiredTargets<T>>::kill();
 	}
 
 	/// Checks the feasibility of a solution.
-	fn feasibility_check(
+	pub fn feasibility_check(
 		solution: RawSolution<CompactOf<T>>,
 		compute: ElectionCompute,
 	) -> Result<ReadySolution<T::AccountId>, FeasibilityError> {

substrate/frame/system/src/lib.rs

@@ -581,7 +581,7 @@ pub mod pallet {
 	/// Events deposited for the current block.
 	#[pallet::storage]
 	#[pallet::getter(fn events)]
-	pub(super) type Events<T: Config> =
+	pub type Events<T: Config> =
 		StorageValue<_, Vec<EventRecord<T::Event, T::Hash>>, ValueQuery>;
 
 	/// The number of events in the `Events<T>` list.