From 71994dde4f3fd2060ff72efb8416a39a25196826 Mon Sep 17 00:00:00 2001
From: Kanchalai Tanglertsampan <yuisu@microsoft.com>
Date: Tue, 5 Apr 2016 14:12:55 -0700
Subject: [PATCH] Adress PR: add nullability to signature

---
 src/lib/es2015.symbol.wellknown.d.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/lib/es2015.symbol.wellknown.d.ts b/src/lib/es2015.symbol.wellknown.d.ts
index 8e229bf2687..110657e78b1 100644
--- a/src/lib/es2015.symbol.wellknown.d.ts
+++ b/src/lib/es2015.symbol.wellknown.d.ts
@@ -176,7 +176,7 @@ interface RegExp {
       * that search.
       * @param string A string to search within.
       */
-    [Symbol.match](string: string): RegExpMatchArray;
+    [Symbol.match](string: string): RegExpMatchArray | null;
 
     /**
       * Replaces text in a string, using this regular expression.
@@ -230,7 +230,7 @@ interface String {
       * Matches a string an object that supports being matched against, and returns an array containing the results of that search.
       * @param matcher An object that supports being matched against.
       */
-    match(matcher: { [Symbol.match](string: string): RegExpMatchArray; }): RegExpMatchArray;
+    match(matcher: { [Symbol.match](string: string): RegExpMatchArray | null; }): RegExpMatchArray | null;
 
     /**
       * Replaces text in a string, using an object that supports replacement within a string.