From 1921292250f11017d6c765f763e0872a6894695a Mon Sep 17 00:00:00 2001
From: alexlamsl <alexlamsl@gmail.com>
Date: Tue, 23 Jan 2018 02:15:39 +0800
Subject: [PATCH] backport of #2835

---
 lib/compress.js | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/compress.js b/lib/compress.js
index 2803b85c..115f8725 100644
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -1642,7 +1642,7 @@ merge(Compressor.prototype, {
             var stat = null;
             for (var i = 0, len = block.body.length; i < len; i++) {
                 var line = block.body[i];
-                if (line instanceof AST_Definitions && declarations_only(line)) {
+                if (line instanceof AST_Var && declarations_only(line)) {
                     decls.push(line);
                 } else if (stat) {
                     return false;