From f7c6f60a47a71a2e2bb63828a6b71369e0d4a19b Mon Sep 17 00:00:00 2001
From: kzc <zaxxon2011@gmail.com>
Date: Wed, 6 Sep 2017 13:16:21 -0400
Subject: [PATCH] add more known globals to `unsafe` option

---
 lib/compress.js            | 2 +-
 test/compress/dead-code.js | 8 ++++++++
 2 files changed, 9 insertions(+), 1 deletion(-)

diff --git a/lib/compress.js b/lib/compress.js
index 7c60b763..45cc79e5 100644
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -693,7 +693,7 @@ merge(Compressor.prototype, {
         return node instanceof AST_SymbolRef && node.definition().undeclared;
     }
 
-    var global_names = makePredicate("Array Boolean console Date Error Function Math Number RegExp Object String");
+    var global_names = makePredicate("Array Boolean console Date Error EvalError Function JSON Math Number parseInt RangeError ReferenceError RegExp Object String SyntaxError TypeError URIError");
     AST_SymbolRef.DEFMETHOD("is_declared", function(compressor) {
         return !this.definition().undeclared
             || compressor.option("unsafe") && global_names(this.name);
diff --git a/test/compress/dead-code.js b/test/compress/dead-code.js
index bee7994e..6ae368fa 100644
--- a/test/compress/dead-code.js
+++ b/test/compress/dead-code.js
@@ -243,12 +243,20 @@ issue_2233_1: {
         console.log;
         Date;
         Error.name;
+        EvalError;
         Function.length;
+        JSON;
         Math.random;
         Number.isNaN;
+        parseInt;
         RegExp;
         Object.defineProperty;
         String.fromCharCode;
+        RangeError;
+        ReferenceError;
+        SyntaxError;
+        TypeError;
+        URIError;
     }
     expect: {}
     expect_stdout: true