Add test for files in app directory of in-repo addons#345

rwjblue merged 1 commit intoember-cli-code-coverage:masterember-cli-code-coverage/ember-cli-code-coverage:masterfrom

robinborst95:feature/in-repo-app-testrobinborst95/ember-cli-code-coverage:feature/in-repo-app-testCopy head branch name to clipboard