FIX: Move makeArray to discourse-common

app/assets/javascripts/discourse/lib/utilities.js.es6

@@ -3,13 +3,6 @@ import toMarkdown from "discourse/lib/to-markdown";
 
 const homepageSelector = "meta[name=discourse_current_homepage]";
 
-export function makeArray(obj) {
-  if (obj === null || obj === undefined) {
-    return [];
-  }
-  return Array.isArray(obj) ? obj : [obj];
-}
-
 export function translateSize(size) {
   switch (size) {
     case "tiny":

app/assets/javascripts/discourse/widgets/private-message-map.js.es6

@@ -1,4 +1,4 @@
-import { makeArray } from "discourse/lib/utilities";
+import { makeArray } from "discourse-common/lib/helpers";
 import { createWidget } from "discourse/widgets/widget";
 import { h } from "virtual-dom";
 import { avatarFor, avatarImg } from "discourse/widgets/post";