fix(link-to): add id to "inactive loading state" warning

Without an ID, this triggers an assertion with the message "When calling warn you must provide an options hash as the third parameter. options should include an id property."

Author: lennyburdette

packages/ember-glimmer/lib/components/link-to.ts

@@ -628,7 +628,9 @@ const LinkComponent = EmberComponent.extend({
 
     if (get(this, 'loading')) {
       // tslint:disable-next-line:max-line-length
-      warn('This link-to is in an inactive loading state because at least one of its parameters presently has a null/undefined value, or the provided route name is invalid.', false);
+      warn('This link-to is in an inactive loading state because at least one of its parameters presently has a null/undefined value, or the provided route name is invalid.', false, {
+        id: 'ember-glimmer.link-to.inactive-loading-state'
+      });
       return false;
     }