From b0b0851f8d4f13368a60c6383b36958dddb6ce5f Mon Sep 17 00:00:00 2001
From: Nik Nyby <nnyby@columbia.edu>
Date: Tue, 13 Jun 2017 12:08:20 -0400
Subject: [PATCH] https://github.com/mishoo/UglifyJS2/issues/2054