FIX: More `Promise` uses that were not imported

app/assets/javascripts/discourse/models/group.js.es6

@@ -11,6 +11,7 @@ import GroupHistory from "discourse/models/group-history";
 import RestModel from "discourse/models/rest";
 import Topic from "discourse/models/topic";
 import User from "discourse/models/user";
+import { Promise } from "rsvp";
 
 const Group = RestModel.extend({
   user_count: 0,
@@ -38,7 +39,7 @@ const Group = RestModel.extend({
 
   findMembers(params, refresh) {
     if (isEmpty(this.name) || !this.can_see_members) {
-      return Ember.RSVP.Promise.reject();
+      return Promise.reject();
     }
 
     if (refresh) {
@@ -73,7 +74,7 @@ const Group = RestModel.extend({
 
   findRequesters(params, refresh) {
     if (isEmpty(this.name) || !this.can_see_members) {
-      return Ember.RSVP.Promise.reject();
+      return Promise.reject();
     }
 
     if (refresh) {

app/assets/javascripts/discourse/models/store.js.es6

@@ -6,6 +6,7 @@ import { getRegister } from "discourse-common/lib/get-owner";
 import { underscore } from "@ember/string";
 import { set } from "@ember/object";
 import Category from "discourse/models/category";
+import { Promise } from "rsvp";
 
 let _identityMap;
 

app/assets/javascripts/discourse/widgets/post.js.es6

@@ -16,6 +16,7 @@ import {
 import hbs from "discourse/widgets/hbs-compiler";
 import { relativeAgeMediumSpan } from "discourse/lib/formatter";
 import { prioritizeNameInUx } from "discourse/lib/settings";
+import { Promise } from "rsvp";
 
 function transformWithCallbacks(post) {
   let transformed = transformBasicPost(post);

app/assets/javascripts/discourse/widgets/quick-access-panel.js.es6

@@ -2,6 +2,7 @@ import Session from "discourse/models/session";
 import { createWidget } from "discourse/widgets/widget";
 import { h } from "virtual-dom";
 import { headerHeight } from "discourse/components/site-header";
+import { Promise } from "rsvp";
 
 const AVERAGE_ITEM_HEIGHT = 55;
 

app/assets/javascripts/discourse/widgets/quick-access-profile.js.es6

@@ -1,5 +1,6 @@
 import QuickAccessPanel from "discourse/widgets/quick-access-panel";
 import { createWidgetFrom } from "discourse/widgets/widget";
+import { Promise } from "rsvp";
 
 createWidgetFrom(QuickAccessPanel, "quick-access-profile", {
   buildKey: () => "quick-access-profile",

app/assets/javascripts/preload-store.js.es6

@@ -21,14 +21,14 @@ export default {
   **/
   getAndRemove(key, finder) {
     if (this.data[key]) {
-      var promise = Promise.resolve(this.data[key]);
+      let promise = Promise.resolve(this.data[key]);
       delete this.data[key];
       return promise;
     }
 
     if (finder) {
       return new Promise(function(resolve, reject) {
-        var result = finder();
+        let result = finder();
 
         // If the finder returns a promise, we support that too
         if (result && result.then) {