Move function argument cfg tests to issue-specific regression test

tests/test.rs

@@ -54,10 +54,6 @@ trait Trait {
     async fn calls_mut(&mut self) {
         self.selfmut().await;
     }
-
-    async fn cfg_param(&self, param: u8);
-    async fn cfg_param_wildcard(&self, _: u8);
-    async fn cfg_param_tuple(&self, (left, right): (u8, u8));
 }
 
 struct Struct;
@@ -91,17 +87,6 @@ impl Trait for Struct {
     async fn calls_mut(&mut self) {
         self.selfmut().await;
     }
-
-    async fn cfg_param(&self, #[cfg(any())] param: u8, #[cfg(all())] _unused: u8) {}
-
-    async fn cfg_param_wildcard(&self, #[cfg(any())] _: u8, #[cfg(all())] _: u8) {}
-
-    async fn cfg_param_tuple(
-        &self,
-        #[cfg(any())] (left, right): (u8, u8),
-        #[cfg(all())] (_left, _right): (u8, u8),
-    ) {
-    }
 }
 
 pub async fn test() {
@@ -1479,3 +1464,31 @@ pub mod issue210 {
         async fn f(self: Arc<Self>) {}
     }
 }
+
+// https://github.com/dtolnay/async-trait/issues/226
+pub mod issue226 {
+    use async_trait::async_trait;
+
+    #[async_trait]
+    pub trait Trait {
+        async fn cfg_param(&self, param: u8);
+        async fn cfg_param_wildcard(&self, _: u8);
+        async fn cfg_param_tuple(&self, (left, right): (u8, u8));
+    }
+
+    struct Struct;
+
+    #[async_trait]
+    impl Trait for Struct {
+        async fn cfg_param(&self, #[cfg(any())] param: u8, #[cfg(all())] _unused: u8) {}
+
+        async fn cfg_param_wildcard(&self, #[cfg(any())] _: u8, #[cfg(all())] _: u8) {}
+
+        async fn cfg_param_tuple(
+            &self,
+            #[cfg(any())] (left, right): (u8, u8),
+            #[cfg(all())] (_left, _right): (u8, u8),
+        ) {
+        }
+    }
+}