Allow compiling #foo in obj without compiling private fields (#13172)

packages/babel-helper-create-class-features-plugin/src/index.js

@@ -20,7 +20,7 @@ import {
   isLoose,
 } from "./features";
 
-export { FEATURES, injectInitialization };
+export { FEATURES, enableFeature, injectInitialization };
 
 // Note: Versions are represented as an integer. e.g. 7.1.5 is represented
 //       as 70000100005. This method is easier than using a semver-parsing