From: Jan Kotas <jkotas@microsoft.com>
Date: Sat, 20 Jan 2018 21:32:46 +0000 (-0800)
Subject: Fix timezone lookup to be consistently case insensitive (#15951)
X-Git-Tag: accepted/tizen/base/20180629.140029~89
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=ab91124003c73c28d0067f9a822b48eb829ad5cf;p=platform%2Fupstream%2Fcoreclr.git

Fix timezone lookup to be consistently case insensitive (#15951)

The timezone ids used case insensitive comparisons everywhere, except in the dictionary used to cache timezones.

Fixes dotnet/corefx#26479
---

diff --git a/src/mscorlib/shared/System/TimeZoneInfo.cs b/src/mscorlib/shared/System/TimeZoneInfo.cs
index f9b5ce8..6e27376 100644
--- a/src/mscorlib/shared/System/TimeZoneInfo.cs
+++ b/src/mscorlib/shared/System/TimeZoneInfo.cs
@@ -1894,7 +1894,7 @@ namespace System
             if (result == TimeZoneInfoResult.Success)
             {
                 if (cachedData._systemTimeZones == null)
-                    cachedData._systemTimeZones = new Dictionary<string, TimeZoneInfo>();
+                    cachedData._systemTimeZones = new Dictionary<string, TimeZoneInfo>(StringComparer.OrdinalIgnoreCase);
 
                 cachedData._systemTimeZones.Add(id, match);