Add deprecation for the Ember Global

packages/@ember/-internals/bootstrap/index.js

@@ -1,5 +1,6 @@
 import require from 'require';
 import { context } from '@ember/-internals/environment';
+import { deprecate } from '@ember/debug';
 
 (function () {
   let Ember;
@@ -13,6 +14,20 @@ import { context } from '@ember/-internals/environment';
           Ember = require('ember').default;
         }
 
+        deprecate(
+          'Usage of the Ember Global is deprecated. You should import the Ember module or the specific API instead.',
+          false,
+          {
+            id: 'ember-global',
+            until: '4.0.0',
+            url: 'https://deprecations.emberjs.com/v3.x/#toc_ember-global',
+            for: 'ember-source',
+            since: {
+              enabled: '3.27.0',
+            },
+          }
+        );
+
         return Ember;
       },
     });

packages/internal-test-helpers/lib/test-cases/default-resolver-application.js

@@ -12,7 +12,7 @@ export default class DefaultResolverApplicationTestCase extends AbstractApplicat
     let application;
     expectDeprecation(() => {
       application = this.application = Application.create(this.applicationOptions);
-    }, /Using the globals resolver is deprecated/);
+    }, /(Using the globals resolver is deprecated|Usage of the Ember Global is deprecated)/);
 
     // If the test expects a certain number of assertions, increment that number
     let { assert } = QUnit.config.current;