fix runtime generator breaking the helper inclusion loop - fixes #429

CHANGELOG.md

@@ -11,6 +11,11 @@
 
 _Note: Gaps between patch versions are faulty/broken releases._
 
+## 2.9.1
+
+ * **Internal**
+  * Fix runtime generator breaking the helper inclusion loop.
+
 ## 2.9.0
 
  * **Internal**

lib/6to5/runtime-generator.js

@@ -20,7 +20,7 @@ module.exports = function (namespace) {
 
   _.each(File.helpers, function (name) {
     if (_.contains(File.excludeHelpersFromRuntime, name)) {
-      return false;
+      return;
     }
 
     var key = t.identifier(t.toIdentifier(name));