From 242c59ea40c0428e1ced7366bf2c28bfbdda1999 Mon Sep 17 00:00:00 2001
From: Taylor Woll <tawoll@ntdev.microsoft.com>
Date: Tue, 2 Jul 2019 13:12:05 -0700
Subject: [PATCH] [CVE-2019-1131] Chakra Type confusion

---
 lib/Parser/Parse.cpp | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/lib/Parser/Parse.cpp b/lib/Parser/Parse.cpp
index b49d0feec31..518457b8e6d 100644
--- a/lib/Parser/Parse.cpp
+++ b/lib/Parser/Parse.cpp
@@ -4664,10 +4664,7 @@ ParseNodePtr Parser::ParseMemberList(LPCOLESTR pNameHint, uint32* pNameHintLengt
                     }
                 }
 
-                if (buildAST)
-                {
-                    CheckArgumentsUse(pidHint, GetCurrentFunctionNode());
-                }
+                CheckArgumentsUse(pidHint, GetCurrentFunctionNode());
 
                 bool couldBeObjectPattern = !isObjectPattern && m_token.tk == tkAsg;
                 // Saving the current state as we may change the isObjectPattern down below.