Backport from EE

spec/javascripts/diffs/mock_data/diff_file.js

+// Copied to ee/spec/frontend/diffs/mock_data/diff_file.js
+
 export default {
   submodule: false,
   submodule_link: null,

spec/javascripts/notes/mock_data.js

+// Copied to ee/spec/frontend/notes/mock_data.js
+
 export const notesDataMock = {
   discussionsPath: '/gitlab-org/gitlab-ce/issues/26/discussions.json',
   lastFetchedAt: 1501862675,