From c9d2c17bc7e2db3baf87b7ac3f5997368a86dc92 Mon Sep 17 00:00:00 2001
From: Christopher Chedeau <vjeux@fb.com>
Date: Thu, 23 Feb 2017 09:47:06 -0800
Subject: [PATCH] Fix tests on node 4

Turns out, if you don't put "use strict"; `const` behaves in a crazy way.
---
 src/comments.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/comments.js b/src/comments.js
index 5e13ada69..86106b4f7 100644
--- a/src/comments.js
+++ b/src/comments.js
@@ -1,3 +1,5 @@
+"use strict";
+
 var assert = require("assert");
 var types = require("ast-types");
 var n = types.namedTypes;
@@ -456,11 +458,11 @@ function printComment(commentPath) {
 }
 
 function findExpressionIndexForComment(expressions, comment) {
-  var match;
+  let match;
   const startPos = locStart(comment) - 1;
   const endPos = locEnd(comment) + 1;
 
-  for (var i = 0; i < expressions.length; ++i) {
+  for (let i = 0; i < expressions.length; ++i) {
     const range = getExpressionRange(expressions[i])
 
     if (