Move `prepend` outside the `class` block for finders

app/finders/autocomplete/users_finder.rb

@@ -2,8 +2,6 @@
 
 module Autocomplete
   class UsersFinder
-    prepend EE::Autocomplete::UsersFinder
-
     # The number of users to display in the results is hardcoded to 20, and
     # pagination is not supported. This ensures that performance remains
     # consistent and removes the need for implementing keyset pagination to
@@ -87,3 +85,5 @@ module Autocomplete
     end
   end
 end
+
+Autocomplete::UsersFinder.prepend(EE::Autocomplete::UsersFinder)

app/finders/issues_finder.rb

@@ -25,8 +25,6 @@
 #     updated_before: datetime
 #
 class IssuesFinder < IssuableFinder
-  prepend EE::IssuesFinder
-
   CONFIDENTIAL_ACCESS_LEVEL = Gitlab::Access::REPORTER
 
   def self.scalar_params
@@ -151,3 +149,5 @@ class IssuesFinder < IssuableFinder
     end
   end
 end
+
+IssuesFinder.prepend(EE::IssuesFinder)

app/finders/notes_finder.rb

 # frozen_string_literal: true
 
 class NotesFinder
-  prepend EE::NotesFinder
-
   FETCH_OVERLAP = 5.seconds
 
   # Used to filter Notes
@@ -143,3 +141,5 @@ class NotesFinder
     @params[:notes_filter].present?
   end
 end
+
+NotesFinder.prepend(EE::NotesFinder)

ee/changelogs/unreleased/gt-move-prepend-outside-the-class-block-for-finders.yml

+---
+title: Move `prepend` outside the `class` block for finders
+merge_request: 8192
+author: George Tsiolis
+type: other