From 9f2b33e9e124c1a6be86fa83c21a1a8134a9ca10 Mon Sep 17 00:00:00 2001
From: Tanner Gooding <tagoo@outlook.com>
Date: Fri, 29 Mar 2019 06:32:52 -0700
Subject: [PATCH]  Updating BuildTools, CoreCLR to preview4-03828-01,
 preview4-27528-71, respectively (#23536)

* Removing FeedTasksPackageVersion from dependencies.props
* The corresponding metadata was removed in https://github.com/dotnet/coreclr/pull/22884

* Updating BuildTools, CoreCLR to preview4-03828-01, preview4-27528-71, respectively

* Adding a ! in String.Searching.cs
---
 BuildToolsVersion.txt                                        |  2 +-
 ILAsmVersion.txt                                             |  2 +-
 dependencies.props                                           | 11 +++--------
 src/System.Private.CoreLib/shared/System/String.Searching.cs |  2 +-
 4 files changed, 6 insertions(+), 11 deletions(-)

diff --git a/BuildToolsVersion.txt b/BuildToolsVersion.txt
index c452d56..2dc3810 100644
--- a/BuildToolsVersion.txt
+++ b/BuildToolsVersion.txt
@@ -1 +1 @@
-3.0.0-preview1-03723-01
+3.0.0-preview4-03828-01
diff --git a/ILAsmVersion.txt b/ILAsmVersion.txt
index 5967a38..abee55d 100644
--- a/ILAsmVersion.txt
+++ b/ILAsmVersion.txt
@@ -1 +1 @@
-3.0.0-preview4-27427-72
+3.0.0-preview4-27528-71
diff --git a/dependencies.props b/dependencies.props
index fc82a23..130926c 100644
--- a/dependencies.props
+++ b/dependencies.props
@@ -26,13 +26,13 @@
 
   <!-- Source of truth for dependency tooling: the commit hash of the dotnet/versions master branch as of the last auto-upgrade. -->
   <PropertyGroup>
-    <CoreClrCurrentRef>9ff62111734d641ece5e5ccb873f2a463675d81b</CoreClrCurrentRef>
-    <BuildToolsCurrentRef>9ff62111734d641ece5e5ccb873f2a463675d81b</BuildToolsCurrentRef>
+    <CoreClrCurrentRef>79eb261c83005ea1c93c7861d374d1dd16a07353</CoreClrCurrentRef>
+    <BuildToolsCurrentRef>79eb261c83005ea1c93c7861d374d1dd16a07353</BuildToolsCurrentRef>
   </PropertyGroup>
 
   <!-- Tests/infrastructure dependency versions. -->
   <PropertyGroup>
-    <MicrosoftNETCoreRuntimeCoreCLRPackageVersion>3.0.0-preview4-27427-72</MicrosoftNETCoreRuntimeCoreCLRPackageVersion>
+    <MicrosoftNETCoreRuntimeCoreCLRPackageVersion>3.0.0-preview4-27528-71</MicrosoftNETCoreRuntimeCoreCLRPackageVersion>
     <XunitPackageVersion>2.4.1</XunitPackageVersion>
     <XunitPerformanceApiPackageVersion>1.0.0-beta-build0015</XunitPerformanceApiPackageVersion>
     <MicrosoftDiagnosticsTracingTraceEventPackageVersion>2.0.36</MicrosoftDiagnosticsTracingTraceEventPackageVersion>
@@ -82,11 +82,6 @@
       <Path>$(MSBuildThisFileDirectory)BuildToolsVersion.txt</Path>
       <PackageId>Microsoft.DotNet.BuildTools</PackageId>
     </UpdateStep>
-    <XmlUpdateStep Include="BuildTools">
-       <Path>$(MSBuildThisFileFullPath)</Path>
-       <ElementName>FeedTasksPackageVersion</ElementName>
-       <PackageId>$(FeedTasksPackage)</PackageId>
-    </XmlUpdateStep>
     <UpdateStep Include="ILAsm">
       <UpdaterType>File</UpdaterType>
       <Path>$(MSBuildThisFileDirectory)ILAsmVersion.txt</Path>
diff --git a/src/System.Private.CoreLib/shared/System/String.Searching.cs b/src/System.Private.CoreLib/shared/System/String.Searching.cs
index 49c0654..de91b3b 100644
--- a/src/System.Private.CoreLib/shared/System/String.Searching.cs
+++ b/src/System.Private.CoreLib/shared/System/String.Searching.cs
@@ -19,7 +19,7 @@ namespace System
             return SpanHelpers.IndexOf(
                 ref _firstChar,
                 Length,
-                ref value._firstChar,
+                ref value!._firstChar,      // TODO-NULLABLE: Compiler Bug?
                 value.Length) >= 0;
         }
 
-- 
2.7.4