Format ui test files using rustfmt
diff --git a/tests/ui/empty_enum.rs b/tests/ui/empty_enum.rs
index a9ad533..987004b 100644
--- a/tests/ui/empty_enum.rs
+++ b/tests/ui/empty_enum.rs
@@ -1,8 +1,6 @@
 #[cxx::bridge]
 mod ffi {
-    enum A {
-
-    }
+    enum A {}
 }
 
 fn main() {}
diff --git a/tests/ui/empty_enum.stderr b/tests/ui/empty_enum.stderr
index c73578a..7f35019 100644
--- a/tests/ui/empty_enum.stderr
+++ b/tests/ui/empty_enum.stderr
@@ -1,7 +1,5 @@
 error: enums without any variants are not supported
  --> $DIR/empty_enum.rs:3:5
   |
-3 | /     enum A {
-4 | |
-5 | |     }
-  | |_____^
+3 |     enum A {}
+  |     ^^^^^^^^^
diff --git a/tests/ui/multiple_parse_error.rs b/tests/ui/multiple_parse_error.rs
index 061eab6..138d6d6 100644
--- a/tests/ui/multiple_parse_error.rs
+++ b/tests/ui/multiple_parse_error.rs
@@ -2,8 +2,7 @@
 mod ffi {
     struct Monad<T>;
 
-    extern "Haskell" {
-    }
+    extern "Haskell" {}
 }
 
 fn main() {}
diff --git a/tests/ui/multiple_parse_error.stderr b/tests/ui/multiple_parse_error.stderr
index 854aa90..4189507 100644
--- a/tests/ui/multiple_parse_error.stderr
+++ b/tests/ui/multiple_parse_error.stderr
@@ -7,5 +7,5 @@
 error: unrecognized ABI
  --> $DIR/multiple_parse_error.rs:5:5
   |
-5 |     extern "Haskell" {
+5 |     extern "Haskell" {}
   |     ^^^^^^^^^^^^^^^^