From e0bfc727007cf53ef0ad7001fb2da37db0f9ec9a Mon Sep 17 00:00:00 2001
From: Sebastian McKenzie <sebmck@gmail.com>
Date: Wed, 11 Feb 2015 20:16:50 +1100
Subject: [PATCH] fix tail call deopt check

---
 lib/6to5/transformation/transformers/es6/tail-call.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/6to5/transformation/transformers/es6/tail-call.js b/lib/6to5/transformation/transformers/es6/tail-call.js
index 0704275fee..2cc9ec4fed 100644
--- a/lib/6to5/transformation/transformers/es6/tail-call.js
+++ b/lib/6to5/transformation/transformers/es6/tail-call.js
@@ -65,7 +65,7 @@ TailCallTransformer.prototype.hasDeopt = function () {
   // check if the ownerId has been reassigned, if it has then it's not safe to
   // perform optimisations
   var ownerIdInfo = this.scope.getBindingInfo(this.ownerId.name);
-  return ownerIdInfo && !ownerIdInfo.reassigned;
+  return ownerIdInfo && ownerIdInfo.reassigned;
 };
 
 TailCallTransformer.prototype.run = function () {