Convert all CoffeeScript to Javascript. See:

http://meta.discourse.org/t/is-it-better-for-discourse-to-use-javascript-or-coffeescript/3153

app/assets/javascripts/admin/controllers/admin_flags_controller.js

@@ -0,0 +1,28 @@
+(function() {
+
+  window.Discourse.AdminFlagsController = Ember.Controller.extend({
+    clearFlags: function(item) {
+      var _this = this;
+      return item.clearFlags().then((function() {
+        return _this.content.removeObject(item);
+      }), (function() {
+        return bootbox.alert("something went wrong");
+      }));
+    },
+    deletePost: function(item) {
+      var _this = this;
+      return item.deletePost().then((function() {
+        return _this.content.removeObject(item);
+      }), (function() {
+        return bootbox.alert("something went wrong");
+      }));
+    },
+    adminOldFlagsView: (function() {
+      return this.query === 'old';
+    }).property('query'),
+    adminActiveFlagsView: (function() {
+      return this.query === 'active';
+    }).property('query')
+  });
+
+}).call(this);