Fix linting

.eslintrc.js

@@ -28,6 +28,7 @@ module.exports = {
         'tests/dummy/config/**/*.js'
       ],
       excludedFiles: [
+        'mu-trees/**',
         'addon/**',
         'addon-test-support/**',
         'app/**',

mu-trees/addon/resolvers/fallback/index.js

@@ -1,11 +1,11 @@
 import ClassicResolver from 'ember-resolver';
 import Resolver from 'ember-resolver/resolvers/glimmer-wrapper';
-import Ember from 'ember';
+import { assign } from '@ember/polyfills';
 
 export default Resolver.extend({
   init(options) {
     this._super(options);
-    this._fallback = ClassicResolver.create(Ember.assign({
+    this._fallback = ClassicResolver.create(assign({
       namespace: { modulePrefix: this.config.app.name }
     }, options));
   },

mu-trees/addon/resolvers/glimmer-wrapper/index.js

@@ -1,8 +1,7 @@
-import Ember from 'ember';
 import GlimmerResolver from '@glimmer/resolver/resolver';
 import RequireJSRegistry from '../../module-registries/requirejs';
-
-const { DefaultResolver, String: { dasherize } } = Ember;
+import GlobalsResolver from '@ember/application/globals-resolver';
+import { dasherize } from '@ember/string';
 
 function slasherize(dotted) {
   return dotted.replace(/\./g, '/');
@@ -69,7 +68,7 @@ function cleanupEmberSpecifier(specifier, source, _namespace) {
  * this code extends from the DefaultResolver, it should never
  * call `_super` or call into that code.
  */
-const Resolver = DefaultResolver.extend({
+const Resolver = GlobalsResolver.extend({
   init() {
     this._super(...arguments);
 

package.json

@@ -51,6 +51,7 @@
     "ember-source-channel-url": "^1.0.1",
     "ember-try": "^0.2.23",
     "eslint": "^5.2.0",
+    "eslint-plugin-ember": "^5.2.0",
     "eslint-plugin-node": "^7.0.1",
     "loader.js": "^4.2.3",
     "qunit-dom": "^0.7.1"

yarn.lock

@@ -2088,7 +2088,7 @@ ember-qunit@^3.3.2:
     ember-cli-test-loader "^2.2.0"
     qunit "^2.5.0"
 
-ember-rfc176-data@^0.3.0, ember-rfc176-data@^0.3.1:
+ember-rfc176-data@^0.3.0, ember-rfc176-data@^0.3.1, ember-rfc176-data@^0.3.3:
   version "0.3.3"
   resolved "https://registry.yarnpkg.com/ember-rfc176-data/-/ember-rfc176-data-0.3.3.tgz#27fba08d540a7463a4366c48eaa19c5a44971a39"
 
@@ -2243,6 +2243,13 @@ escape-string-regexp@^1.0.2, escape-string-regexp@^1.0.5:
   version "1.0.5"
   resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-1.0.5.tgz#1b61c0562190a8dff6ae3bb2cf0200ca130b86d4"
 
+eslint-plugin-ember@^5.2.0:
+  version "5.2.0"
+  resolved "https://registry.yarnpkg.com/eslint-plugin-ember/-/eslint-plugin-ember-5.2.0.tgz#fa436e0497dfc01d1d38608229cd616e7c5b6067"
+  dependencies:
+    ember-rfc176-data "^0.3.3"
+    snake-case "^2.1.0"
+
 eslint-plugin-es@^1.3.1:
   version "1.3.1"
   resolved "https://registry.yarnpkg.com/eslint-plugin-es/-/eslint-plugin-es-1.3.1.tgz#5acb2565db4434803d1d46a9b4cbc94b345bd028"
@@ -4003,6 +4010,10 @@ loud-rejection@^1.0.0:
     currently-unhandled "^0.4.1"
     signal-exit "^3.0.0"
 
+lower-case@^1.1.1:
+  version "1.1.4"
+  resolved "https://registry.yarnpkg.com/lower-case/-/lower-case-1.1.4.tgz#9a2cabd1b9e8e0ae993a4bf7d5875c39c42e8eac"
+
 lowercase-keys@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/lowercase-keys/-/lowercase-keys-1.0.0.tgz#4e3366b39e7f5457e35f1324bdf6f88d0bfc7306"
@@ -4302,6 +4313,12 @@ nice-try@^1.0.4:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/nice-try/-/nice-try-1.0.4.tgz#d93962f6c52f2c1558c0fbda6d512819f1efe1c4"
 
+no-case@^2.2.0:
+  version "2.3.2"
+  resolved "https://registry.yarnpkg.com/no-case/-/no-case-2.3.2.tgz#60b813396be39b3f1288a4c1ed5d1e7d28b464ac"
+  dependencies:
+    lower-case "^1.1.1"
+
 node-fetch@^1.3.3:
   version "1.7.3"
   resolved "https://registry.yarnpkg.com/node-fetch/-/node-fetch-1.7.3.tgz#980f6f72d85211a5347c6b2bc18c5b84c3eb47ef"
@@ -5215,6 +5232,12 @@ slice-ansi@1.0.0:
   dependencies:
     is-fullwidth-code-point "^2.0.0"
 
+snake-case@^2.1.0:
+  version "2.1.0"
+  resolved "https://registry.yarnpkg.com/snake-case/-/snake-case-2.1.0.tgz#41bdb1b73f30ec66a04d4e2cad1b76387d4d6d9f"
+  dependencies:
+    no-case "^2.2.0"
+
 snapdragon-node@^2.0.1:
   version "2.1.1"
   resolved "https://registry.yarnpkg.com/snapdragon-node/-/snapdragon-node-2.1.1.tgz#6c175f86ff14bdb0724563e8f3c1b021a286853b"