Renaming AwardedEmojiFinder to a Service

This finder class acts more as a service, as it only returns mapped
data.

Renaming this class allows us to create a new AwardEmojiFinder without
the ambiguity of there being two similarly-named finders.

https://gitlab.com/gitlab-org/gitlab-ce/issues/63372

app/controllers/autocomplete_controller.rb

@@ -36,7 +36,7 @@ class AutocompleteController < ApplicationController
   end
 
   def award_emojis
-    render json: AwardedEmojiFinder.new(current_user).execute
+    render json: AwardEmojis::CollectUserEmojiService.new(current_user).execute
   end
 
   def merge_request_target_branches

app/finders/awarded_emoji_finder.rb

@@ -1,21 +0,0 @@
-# frozen_string_literal: true
-
-# Class for retrieving information about emoji awarded _by_ a particular user.
-class AwardedEmojiFinder
-  attr_reader :current_user
-
-  # current_user - The User to generate the data for.
-  def initialize(current_user = nil)
-    @current_user = current_user
-  end
-
-  def execute
-    return [] unless current_user
-
-    # We want the resulting data set to be an Array containing the emoji names
-    # in descending order, based on how often they were awarded.
-    AwardEmoji
-      .award_counts_for_user(current_user)
-      .map { |name, _| { name: name } }
-  end
-end

app/services/award_emojis/collect_user_emoji_service.rb

@@ -0,0 +1,23 @@
+# frozen_string_literal: true
+
+# Class for retrieving information about emoji awarded _by_ a particular user.
+module AwardEmojis
+  class CollectUserEmojiService
+    attr_reader :current_user
+
+    # current_user - The User to generate the data for.
+    def initialize(current_user = nil)
+      @current_user = current_user
+    end
+
+    def execute
+      return [] unless current_user
+
+      # We want the resulting data set to be an Array containing the emoji names
+      # in descending order, based on how often they were awarded.
+      AwardEmoji
+        .award_counts_for_user(current_user)
+        .map { |name, _| { name: name } }
+    end
+  end
+end

spec/services/award_emojis/collect_user_emoji_service_spec.rb

@@ -2,7 +2,7 @@
 
 require 'spec_helper'
 
-describe AwardedEmojiFinder do
+describe AwardEmojis::CollectUserEmojiService do
   describe '#execute' do
     it 'returns an Array containing the awarded emoji names' do
       user = create(:user)