From f71f4905b004a559f0612e0e0928204f912a66bc Mon Sep 17 00:00:00 2001
From: "Alex Lam S.L" <alexlamsl@gmail.com>
Date: Tue, 28 Mar 2017 17:08:16 +0800
Subject: fix `is_number()` on `+=` (#1714)

fixes #1710
---
 test/compress/numbers.js | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'test')

diff --git a/test/compress/numbers.js b/test/compress/numbers.js
index 0b40bb9c..ea439ecc 100644
--- a/test/compress/numbers.js
+++ b/test/compress/numbers.js
@@ -153,3 +153,18 @@ evaluate_4: {
         );
     }
 }
+
+issue_1710: {
+    options = {
+        evaluate: true,
+    }
+    input: {
+        var x = {};
+        console.log((x += 1) + -x);
+    }
+    expect: {
+        var x = {};
+        console.log((x += 1) + -x);
+    }
+    expect_stdout: true
+}
-- 
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