Avoid extra calls to to_s

With #31615 `type_for_attribute` accepts either
a symbol as well as a string. `has_attribute?` and `attribute_alias`
also accept either. Since these methods call `to_s` on the argument,
we no longer need to do that at the call site.

1 files changed, 2 insertions, 2 deletions

diff --git a/activerecord/lib/active_record/associations/preloader/association.rb b/activerecord/lib/active_record/associations/preloader/association.rb
index 735da152b7..ec6f0df484 100644
--- a/activerecord/lib/active_record/associations/preloader/association.rb
+++ b/activerecord/lib/active_record/associations/preloader/association.rb
@@ -82,11 +82,11 @@ module ActiveRecord
           end
 
           def association_key_type
-            @klass.type_for_attribute(association_key_name.to_s).type
+            @klass.type_for_attribute(association_key_name).type
           end
 
           def owner_key_type
-            @model.type_for_attribute(owner_key_name.to_s).type
+            @model.type_for_attribute(owner_key_name).type
           end
 
           def load_records(&block)