fix: Fix runnables trying to add doc tests in the crate root from #[macro_export] macros

crates/ide_db/src/helpers.rs

@@ -76,6 +76,14 @@ pub fn visit_file_defs(
         cb(def.into());
     }
     module.impl_defs(db).into_iter().for_each(|impl_| cb(impl_.into()));
+
+    let is_root = module.is_crate_root(db);
+    module
+        .legacy_macros(db)
+        .into_iter()
+        // don't show legacy macros declared in the crate-root that were already covered in declarations earlier
+        .filter(|it| !(is_root && it.is_macro_export(db)))
+        .for_each(|mac| cb(mac.into()));
 }
 
 /// Checks if the given lint is equal or is contained by the other lint which may or may not be a group.