bound some missing bound for elevated trait (#6487)

Author: gui1117

frame/balances/src/lib.rs

@@ -862,8 +862,8 @@ impl<T: Subtrait<I>, I: Instance> frame_system::Trait for ElevatedTrait<T, I> {
 	type BlockHashCount = T::BlockHashCount;
 	type MaximumBlockWeight = T::MaximumBlockWeight;
 	type DbWeight = T::DbWeight;
-	type BlockExecutionWeight = ();
-	type ExtrinsicBaseWeight = ();
+	type BlockExecutionWeight = T::BlockExecutionWeight;
+	type ExtrinsicBaseWeight = T::ExtrinsicBaseWeight;
 	type MaximumExtrinsicWeight = T::MaximumBlockWeight;
 	type MaximumBlockLength = T::MaximumBlockLength;
 	type AvailableBlockRatio = T::AvailableBlockRatio;