From a99f0d6100c9779f5f6df6008af54c06113355f6 Mon Sep 17 00:00:00 2001
From: Brian Vaughn <bvaughn@fb.com>
Date: Tue, 5 Dec 2017 12:23:42 -0800
Subject: [PATCH] Temporarily patched Map/Set non-extensible check into RN dev
 renderer

Reviewed By: jingc

Differential Revision: D6461125

fbshipit-source-id: 8b30a22db4e357717f1c4f4e21a85ddef02d97d1
---
 Libraries/Renderer/ReactNativeRenderer-dev.js | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Libraries/Renderer/ReactNativeRenderer-dev.js b/Libraries/Renderer/ReactNativeRenderer-dev.js
index cdcf5115e..e9dcd9a29 100644
--- a/Libraries/Renderer/ReactNativeRenderer-dev.js
+++ b/Libraries/Renderer/ReactNativeRenderer-dev.js
@@ -4903,7 +4903,8 @@ var AsyncUpdates = 1;
   try {
     var nonExtensibleObject = Object.preventExtensions({});
     /* eslint-disable no-new */
-
+    new Map([[nonExtensibleObject, null]]);
+    new Set([nonExtensibleObject]);
     /* eslint-enable no-new */
   } catch (e) {
     // TODO: Consider warning about bad polyfills