From 1080d53f68dc984b3728c3ed520e14c7eb39578e Mon Sep 17 00:00:00 2001
From: kzc <zaxxon2011@gmail.com>
Date: Wed, 17 Jan 2018 00:24:20 -0500
Subject: [PATCH] requested changes

---
 lib/minify.js | 10 +++++-----
 lib/output.js |  7 ++-----
 2 files changed, 7 insertions(+), 10 deletions(-)

diff --git a/lib/minify.js b/lib/minify.js
index 01aa0b7f..ee1d478b 100644
--- a/lib/minify.js
+++ b/lib/minify.js
@@ -151,11 +151,11 @@ function minify(files, options) {
             toplevel = toplevel.wrap_commonjs(options.wrap);
         }
         if (timings) timings.rename = Date.now();
-        if (options.rename) {
-            // disable rename on harmony due to expand_names bug in for-of loops
-            // https://github.com/mishoo/UglifyJS2/issues/2794
-            //toplevel.figure_out_scope(options.mangle);
-            //toplevel.expand_names(options.mangle);
+        // disable rename on harmony due to expand_names bug in for-of loops
+        // https://github.com/mishoo/UglifyJS2/issues/2794
+        if (0 && options.rename) {
+            toplevel.figure_out_scope(options.mangle);
+            toplevel.expand_names(options.mangle);
         }
         if (timings) timings.compress = Date.now();
         if (options.compress) toplevel = new Compressor(options.compress).compress(toplevel);
diff --git a/lib/output.js b/lib/output.js
index 2f401b36..61a25534 100644
--- a/lib/output.js
+++ b/lib/output.js
@@ -766,6 +766,7 @@ function OutputStream(options) {
             || p instanceof AST_Arrow                         // x => (x, x)
             || p instanceof AST_DefaultAssign                 // x => (x = (0, function(){}))
             || p instanceof AST_Expansion                     // [...(a, b)]
+            || p instanceof AST_ForOf && this === p.object    // for (e of (foo, bar)) {}
         ;
     });
 
@@ -1041,18 +1042,14 @@ function OutputStream(options) {
         self._do_print_body(output);
     });
     DEFPRINT(AST_ForIn, function(self, output){
-        var is_for_of = self instanceof AST_ForOf;
-        var is_for_of_sequence = is_for_of && self.object instanceof AST_Sequence;
         output.print("for");
         output.space();
         output.with_parens(function(){
             self.init.print(output);
             output.space();
-            output.print(is_for_of ? "of" : "in");
+            output.print(self instanceof AST_ForOf ? "of" : "in");
             output.space();
-            if (is_for_of_sequence) output.print("(");
             self.object.print(output);
-            if (is_for_of_sequence) output.print(")");
         });
         output.space();
         self._do_print_body(output);