Add test for #8931 and better checking

1 files changed, 2 insertions, 2 deletions

diff --git a/crates/hir/src/lib.rs b/crates/hir/src/lib.rs
index 52d72c3c5..800101c91 100644
--- a/crates/hir/src/lib.rs
+++ b/crates/hir/src/lib.rs
@@ -2053,7 +2053,7 @@ impl Type {
         name: Option<&Name>,
         mut callback: impl FnMut(&Ty, AssocItem) -> Option<T>,
     ) -> Option<T> {
-        let canonical = hir_ty::replace_errors_with_variables(self.ty.clone());
+        let canonical = hir_ty::replace_errors_with_variables(&self.ty);
 
         let env = self.env.clone();
         let krate = krate.id;
@@ -2222,7 +2222,7 @@ impl Type {
     }
 
     pub fn could_unify_with(&self, db: &dyn HirDatabase, other: &Type) -> bool {
-        let tys = hir_ty::replace_errors_with_variables((self.ty.clone(), other.ty.clone()));
+        let tys = hir_ty::replace_errors_with_variables(&(self.ty.clone(), other.ty.clone()));
         could_unify(db, self.env.clone(), &tys)
     }
 }