DEV: Do not include method definitions in serializer `attributes`

These accidental inclusions are mostly no-ops (because the method name is also included as an explicit symbol). The mistakes were made more obvious because syntax_tree adjusted the indentation of these methods

app/serializers/current_user_option_serializer.rb

@@ -17,10 +17,11 @@ class CurrentUserOptionSerializer < ApplicationSerializer
              :seen_popups,
              :should_be_redirected_to_top,
              :redirected_to_top,
-             :treat_as_new_topic_start_date,
-             def likes_notifications_disabled
-               object.likes_notifications_disabled?
-             end
+             :treat_as_new_topic_start_date
+
+  def likes_notifications_disabled
+    object.likes_notifications_disabled?
+  end
 
   def include_redirected_to_top?
     object.redirected_to_top.present?

app/serializers/topic_link_serializer.rb

@@ -10,10 +10,11 @@ class TopicLinkSerializer < ApplicationSerializer
              :clicks,
              :user_id,
              :domain,
-             :root_domain,
-             def attachment
-               Discourse.store.has_been_uploaded?(object.url)
-             end
+             :root_domain
+
+  def attachment
+    Discourse.store.has_been_uploaded?(object.url)
+  end
 
   def include_user_id?
     object.user_id.present?

app/serializers/topic_post_count_serializer.rb

@@ -9,10 +9,11 @@ class TopicPostCountSerializer < BasicUserSerializer
              :flair_bg_color,
              :admin,
              :moderator,
-             :trust_level,
-             def id
-               object[:user].id
-             end
+             :trust_level
+
+  def id
+    object[:user].id
+  end
 
   def username
     object[:user].username

app/serializers/user_option_serializer.rb

@@ -36,11 +36,11 @@ class UserOptionSerializer < ApplicationSerializer
              :skip_new_user_tips,
              :default_calendar,
              :oldest_search_log_date,
-             :seen_popups,
-             def auto_track_topics_after_msecs
-               object.auto_track_topics_after_msecs ||
-                 SiteSetting.default_other_auto_track_topics_after_msecs
-             end
+             :seen_popups
+
+  def auto_track_topics_after_msecs
+    object.auto_track_topics_after_msecs || SiteSetting.default_other_auto_track_topics_after_msecs
+  end
 
   def notification_level_when_replying
     object.notification_level_when_replying ||

app/serializers/user_serializer.rb

@@ -67,16 +67,15 @@ class UserSerializer < UserCardSerializer
                      :sidebar_list_destination,
                      :display_sidebar_tags
 
-  untrusted_attributes :bio_raw,
-                       :bio_cooked,
-                       :profile_background_upload_url,
-                       ###
-                       ### ATTRIBUTES
-                       ###
-                       #
-                       def user_notification_schedule
-                         object.user_notification_schedule || UserNotificationSchedule::DEFAULT
-                       end
+  untrusted_attributes :bio_raw, :bio_cooked, :profile_background_upload_url
+
+  ###
+  ### ATTRIBUTES
+  ###
+  #
+  def user_notification_schedule
+    object.user_notification_schedule || UserNotificationSchedule::DEFAULT
+  end
 
   def mailing_list_posts_per_day
     val = Post.estimate_posts_per_day