Merge branch 'ee-ph-dispatcher-1' into 'master'

EE port of ph-dispatcher-1

See merge request gitlab-org/gitlab-ee!3965

app/assets/javascripts/dispatcher.js

@@ -13,7 +13,6 @@ import groupAvatar from './group_avatar';
 import GroupLabelSubscription from './group_label_subscription';
 import LineHighlighter from './line_highlighter';
 import BuildArtifacts from './build_artifacts';
-import CILintEditor from './ci_lint_editor';
 import groupsSelect from './groups_select';
 import Search from './search';
 import initAdmin from './admin';
@@ -618,22 +617,19 @@ import initLDAPGroupsSelect from 'ee/ldap_groups_select'; // eslint-disable-line
           break;
         case 'ci:lints:create':
         case 'ci:lints:show':
-          new CILintEditor();
+          import('./pages/ci/lints').then(m => m.default()).catch(fail);
           break;
         case 'users:show':
           import('./pages/users/show').then(callDefault).catch(fail);
           break;
         case 'admin:conversational_development_index:show':
-          new UserCallout();
+          import('./pages/admin/conversational_development_index/show').then(m => m.default()).catch(fail);
           break;
         case 'snippets:show':
-          new LineHighlighter();
-          new BlobViewer();
-          initNotes();
-          new ZenMode();
+          import('./pages/snippets/show').then(m => m.default()).catch(fail);
           break;
         case 'import:fogbugz:new_user_map':
-          new UsersSelect();
+          import('./pages/import/fogbugz/new_user_map').then(m => m.default()).catch(fail);
           break;
         case 'profiles:personal_access_tokens:index':
         case 'admin:impersonation_tokens:index':

app/assets/javascripts/pages/admin/conversational_development_index/show/index.js

+import UserCallout from '../../../../user_callout';
+
+export default () => new UserCallout();

app/assets/javascripts/pages/ci/lints/index.js

+import CILintEditor from './ci_lint_editor';
+
+export default () => new CILintEditor();

app/assets/javascripts/pages/import/fogbugz/new_user_map/index.js

+import UsersSelect from '../../../../users_select';
+
+export default () => new UsersSelect();

app/assets/javascripts/pages/snippets/show/index.js

+/* eslint-disable no-new */
+import LineHighlighter from '../../../line_highlighter';
+import BlobViewer from '../../../blob/viewer';
+import ZenMode from '../../../zen_mode';
+import initNotes from '../../../init_notes';
+
+export default () => {
+  new LineHighlighter();
+  new BlobViewer();
+  initNotes();
+  new ZenMode();
+};