From 8d24712d8563b4d260da250db5a78dba3414f490 Mon Sep 17 00:00:00 2001
From: Nathan Shively-Sanders <nathansa@microsoft.com>
Date: Wed, 16 Nov 2016 10:14:16 -0800
Subject: [PATCH] Improve __assign emit:remove getOwnPropertySymbols

Since __assign defaults to Object.assign if present, our own helper will
never be used in ES6 and higher, and `getOwnPropertySymbols` is not
needed in ES5 and below because symbols don't exist there.
---
 src/compiler/emitter.ts | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/src/compiler/emitter.ts b/src/compiler/emitter.ts
index eacfd1f0b67..3441644f92b 100644
--- a/src/compiler/emitter.ts
+++ b/src/compiler/emitter.ts
@@ -38,9 +38,6 @@ var __assign = (this && this.__assign) || Object.assign || function(t) {
         s = arguments[i];
         for (var p in s) if (Object.prototype.hasOwnProperty.call(s, p))
             t[p] = s[p];
-        if (typeof Object.getOwnPropertySymbols === "function")
-            for (var i = 0, p = Object.getOwnPropertySymbols(s); i < p.length; i++)
-                t[p[i]] = s[p[i]];
     }
     return t;
 };`;