From: Alex Lam S.L <alexlamsl@gmail.com>
Date: Wed, 29 Nov 2017 05:32:00 +0000 (+0800)
Subject: backport test from #2526 (#2534)
X-Git-Url: https://git.ndcode.org/public/gitweb.cgi?a=commitdiff_plain;h=18302bf8e9507bbb661986e37cf66a95e6017271;p=UglifyJS.git

backport test from #2526 (#2534)
---

diff --git a/test/compress/reduce_vars.js b/test/compress/reduce_vars.js
index 82b5ad6d..a8c151f1 100644
--- a/test/compress/reduce_vars.js
+++ b/test/compress/reduce_vars.js
@@ -4525,3 +4525,21 @@ issue_2485: {
     }
     expect_stdout: "6"
 }
+
+issue_2455: {
+    options = {
+        reduce_vars: true,
+        unused: true,
+    }
+    input: {
+        function foo() {
+            var that = this;
+            for (;;) that.bar();
+        }
+    }
+    expect: {
+        function foo() {
+            for (;;) this.bar();
+        }
+    }
+}