From bf0ca10253f3474c9e5d418e005f1550f330110d Mon Sep 17 00:00:00 2001
From: Sebastian McKenzie <sebmck@gmail.com>
Date: Sun, 23 Nov 2014 16:54:51 +1100
Subject: [PATCH] add abstract reference CallExpression base

---
 .../transformation/transformers/es7-abstract-references.js   | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/lib/6to5/transformation/transformers/es7-abstract-references.js b/lib/6to5/transformation/transformers/es7-abstract-references.js
index 9f75d26134..2f5134ca59 100644
--- a/lib/6to5/transformation/transformers/es7-abstract-references.js
+++ b/lib/6to5/transformation/transformers/es7-abstract-references.js
@@ -24,6 +24,11 @@ exports.UnaryExpression = function (node, parent) {
   });
 };
 
+exports.CallExpression = function (node, parent) {
+  var callee = node.callee;
+  if (!t.isVirtualPropertyExpression(callee)) return;
+};
+
 exports.VirtualPropertyExpression = function (node) {
   return util.template("abstract-expression-get", {
     PROPERTY: node.property,