Additional state check. (#2915)

* check resulting state root on import.

* get root from last method.

* Fix test runtime (was changing state after root calculation).

* Do reset new authorities (just take before root calculation).

* bump impl runtime version.

* Update core/sr-api-macros/tests/trybuild.rs

Co-Authored-By: Bastian Köcher <bkchr@users.noreply.github.com>

substrate/core/client/src/light/call_executor.rs

@@ -170,7 +170,11 @@ where
 		_m: ExecutionManager<FF>,
 		_native_call: Option<NC>,
 		_side_effects_handler: Option<&mut O>,
-	) -> ClientResult<(NativeOrEncoded<R>, S::Transaction, Option<MemoryDB<Blake2Hasher>>)> {
+	) -> ClientResult<(
+		NativeOrEncoded<R>,
+		(S::Transaction, <Blake2Hasher as Hasher>::Out),
+		Option<MemoryDB<Blake2Hasher>>,
+	)> {
 		Err(ClientError::NotAvailableOnLightClient.into())
 	}
 
@@ -343,7 +347,11 @@ impl<Block, B, Remote, Local> CallExecutor<Block, Blake2Hasher> for
 		_manager: ExecutionManager<FF>,
 		native_call: Option<NC>,
 		side_effects_handler: Option<&mut O>,
-	) -> ClientResult<(NativeOrEncoded<R>, S::Transaction, Option<MemoryDB<Blake2Hasher>>)> {
+	) -> ClientResult<(
+		NativeOrEncoded<R>,
+		(S::Transaction, <Blake2Hasher as Hasher>::Out),
+		Option<MemoryDB<Blake2Hasher>>,
+	)> {
 		// there's no actual way/need to specify native/wasm execution strategy on light node
 		// => we can safely ignore passed values