From 8b2cfd45fa8dd4f01d9535ad43bc37ce4953e78d Mon Sep 17 00:00:00 2001
From: "Alex Lam S.L" <alexlamsl@gmail.com>
Date: Mon, 15 Jun 2020 01:29:01 +0800
Subject: fix corner case in `rename` (#4000)

fixes #3999
---
 test/compress/ie8.js | 41 +++++++++++++++++++++++++++++++++++++++--
 1 file changed, 39 insertions(+), 2 deletions(-)

(limited to 'test/compress')

diff --git a/test/compress/ie8.js b/test/compress/ie8.js
index e11e3651..c0049766 100644
--- a/test/compress/ie8.js
+++ b/test/compress/ie8.js
@@ -2223,13 +2223,13 @@ issue_3523_rename_ie8: {
     expect: {
         var a = 0, b, c = "FAIL";
         (function() {
-            var c, n, t, o, a, r, f, i, u, e, h, l, v, y;
+            var c, n, t, o, a, r, e, f, i, u, h, l, v, y;
         })();
         try {
             throw 0;
         } catch (e) {
             (function() {
-                (function n() {
+                (function e() {
                     c = "PASS";
                 })();
             })();
@@ -2522,3 +2522,40 @@ issue_3918: {
     }
     expect_stdout: "PASS"
 }
+
+issue_3999: {
+    rename = true
+    mangle = {
+        ie8: true,
+    }
+    input: {
+        (function() {
+            (function f() {
+                for (var i = 0; i < 2; i++)
+                    try {
+                        f[0];
+                    } catch (f) {
+                        var f = 0;
+                        console.log(i);
+                    }
+            })();
+        })(typeof f);
+    }
+    expect: {
+        (function() {
+            (function f() {
+                for (var c = 0; c < 2; c++)
+                    try {
+                        f[0];
+                    } catch (f) {
+                        var f = 0;
+                        console.log(c);
+                    }
+            })();
+        })(typeof f);
+    }
+    expect_stdout: [
+        "0",
+        "1",
+    ]
+}
-- 
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