fix tests

ethcore/src/miner/transaction_queue.rs

@@ -804,6 +804,7 @@ mod test {
 	use error::{Error, TransactionError};
 	use super::*;
 	use super::{TransactionSet, TransactionOrder, VerifiedTransaction};
+	use client::TransactionImportResult;
 
 	fn unwrap_tx_err(err: Result<TransactionImportResult, Error>) -> TransactionError {
 		match err.unwrap_err() {