Transpile vendor tree, fix Ember version detection

Author: simonihmig

index.js

@@ -1,6 +1,6 @@
 'use strict';
 
-const EMBER_VERSION_WITH_JQUERY_DEPRECATION = '3.9.0-canary';
+const EMBER_VERSION_WITH_JQUERY_DEPRECATION = '3.9.0-alpha.1';
 
 module.exports = {
   name: require('./package').name,
@@ -50,6 +50,13 @@ module.exports = {
       files: ['jquery.js'],
     });
 
-    return new BroccoliMergeTrees([jquery, tree]);
+    let babelAddon = this.project.findAddonByName('ember-cli-babel');
+    let transpiledTree = babelAddon.transpileTree(tree, {
+      'ember-cli-babel': {
+        compileModules: false
+      }
+    });
+
+    return new BroccoliMergeTrees([jquery, transpiledTree]);
   },
 };

vendor/jquery/component.dollar.js

@@ -1,12 +1,16 @@
-Ember.Component.reopen({
-  $(sel) {
-    Ember.assert(
-      "You cannot access this.$() on a component with `tagName: ''` specified.",
-      this.tagName !== ''
-    );
+import { assert } from '@ember/debug';
 
-    if (this.element) {
-      return sel ? jQuery(sel, this.element) : jQuery(this.element);
+(function() {
+  Ember.Component.reopen({
+    $(sel) {
+      assert(
+        "You cannot access this.$() on a component with `tagName: ''` specified.",
+        this.tagName !== ''
+      );
+
+      if (this.element) {
+        return sel ? jQuery(sel, this.element) : jQuery(this.element);
+      }
     }
-  }
-});
+  });
+})();