fix: Handle multiple #[repr(..)] attrs correctly

crates/hir-ty/src/layout/tests.rs

@@ -284,6 +284,18 @@ fn repr_packed() {
     check_size_and_align("#[repr(Rust, packed(5))] struct Goal(i32);", "", 4, 1);
 }
 
+#[test]
+fn multiple_repr_attrs() {
+    size_and_align!(
+        #[repr(C)]
+        #[repr(packed)]
+        struct Goal {
+            id: i32,
+            u: u8,
+        }
+    )
+}
+
 #[test]
 fn generic() {
     size_and_align! {