fix clippy

Author: pgherveou

integration-tests/erc1155/lib.rs

@@ -1,7 +1,6 @@
 #![cfg_attr(not(feature = "std"), no_std, no_main)]
 
 use ink::{
-    env::ReturnErrorCode,
     prelude::vec::Vec,
     primitives::AccountId,
 };
@@ -414,6 +413,8 @@ mod erc1155 {
                         )
                     }
                     Err(e) => {
+                        use ink::env::ReturnErrorCode;
+
                         match e {
                             ink::env::Error::ReturnError(
                                 ReturnErrorCode::CodeNotFound

integration-tests/sr25519-verification/lib.rs

@@ -102,7 +102,7 @@ pub mod sr25519_verification {
                 143,
             ];
             let result = ink::env::sr25519_verify(&signature, &message, &public_key);
-            assert_eq!(result, Err(ink::env::Error::Sr25519VerifyFailed));
+            assert_eq!(result, Err(ink::env::ReturnErrorCode::Sr25519VerifyFailed.into()));
         }
 
         #[ink::test]
@@ -128,7 +128,7 @@ pub mod sr25519_verification {
                 143,
             ];
             let result = ink::env::sr25519_verify(&signature, &message, &public_key);
-            assert_eq!(result, Err(ink::env::Error::Sr25519VerifyFailed));
+            assert_eq!(result, Err(ink::env::ReturnErrorCode::Sr25519VerifyFailed.into()));
         }
     }
 }