Introduce failing test case for emberjs#423, emberjs#425

Author: chriskrycho

node-tests/addon-test.js

@@ -135,6 +135,29 @@ describe("ember-cli-babel", function () {
       })
     );
 
+    it.only(
+      "can compile decorators",
+      co.wrap(function* () {
+        input.write({
+          "foo.js": `import Component from '@ember/component';\nimport { tracked } from '@glimmer/tracking';\nexport default class Foo extends Controller { @tracked thisIsTracked = true; }`,
+        });
+
+        this.addon.project.targets = {
+          browsers: ["last 2 chrome versions"],
+        };
+
+        subject = this.addon.transpileTree(input.path(), {});
+
+        output = createBuilder(subject);
+
+        yield output.build();
+        console.log(output.read());
+        expect(output.read()["foo.js"]).not.to.include(
+          "Decorating class property failed"
+        );
+      })
+    );
+
     describe("ember modules API polyfill", function () {
       it(
         "does not transpile deprecate debug tooling import paths",