From 82d9f06c195ad71fceffacfa123f140f0fcee9e2 Mon Sep 17 00:00:00 2001
From: Ahson Khan <ahkha@microsoft.com>
Date: Wed, 14 Mar 2018 17:01:53 -0700
Subject: [PATCH] Update the compiler version and the language version to 7.3

---
 README.md                                                     | 2 +-
 .../System/Buffers/Writer/BufferWriter_writable.cs            | 4 ++--
 tools/common.props                                            | 2 +-
 tools/dependencies.props                                      | 2 +-
 4 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/README.md b/README.md
index 6f5fd26777f..fe8cf76ce68 100644
--- a/README.md
+++ b/README.md
@@ -118,7 +118,7 @@ To build the projects in this repo, you have a few options:
 * (On Windows) Invoke build.cmd. This will download an acceptable version of the .NET CLI automatically and use it to build the entire repository. NOTE: Don't invoke `scripts/build.ps1` directly. It requires that some environment be set in order for it to work correctly. `build.cmd` does this.
 * (On Windows) Open the solution file in Visual Studio 2015. NOTE: This requires unreleased plugins to work at this point in time.
 Using VS Code, see https://aka.ms/vscclrdogfood.
-* If using Visual Studio, install the following VSIX to have IDE support for C#7.2 features that this project uses. - https://dotnet.myget.org/F/roslyn/vsix/0b48e25b-9903-4d8b-ad39-d4cca196e3c7-2.6.0.6221102.vsix
+* If using Visual Studio, install the following VSIX to have IDE support for C#7.3 features that this project uses. - https://dotnet.myget.org/F/roslyn/vsix/0b5e8ddb-f12d-4131-a71d-77acc26a798f-2.8.0.6270809.vsix
 
 ## Measuring Performance
 
diff --git a/src/System.Buffers.ReaderWriter/System/Buffers/Writer/BufferWriter_writable.cs b/src/System.Buffers.ReaderWriter/System/Buffers/Writer/BufferWriter_writable.cs
index 77c1d501a43..344ffa79a38 100644
--- a/src/System.Buffers.ReaderWriter/System/Buffers/Writer/BufferWriter_writable.cs
+++ b/src/System.Buffers.ReaderWriter/System/Buffers/Writer/BufferWriter_writable.cs
@@ -11,10 +11,10 @@ public ref partial struct BufferWriter
     {
         #region Byte
         public bool TryWriteBytes(byte[] bytes)
-            => TryWriteBytes((ReadOnlySpan<byte>)bytes.AsSpan());
+            => TryWriteBytes(bytes.AsSpan());
 
         public void WriteBytes(byte[] bytes)
-            => WriteBytes((ReadOnlySpan<byte>)bytes.AsSpan());
+            => WriteBytes(bytes.AsSpan());
 
         public bool TryWriteBytes(ReadOnlySpan<byte> bytes)
         {
diff --git a/tools/common.props b/tools/common.props
index dcfe9f660d0..0d56ac13a1f 100644
--- a/tools/common.props
+++ b/tools/common.props
@@ -13,7 +13,7 @@
     <SignAssembly>true</SignAssembly>
     <PublicSign Condition=" '$(OS)' != 'Windows_NT' ">true</PublicSign>
     <AssemblyOriginatorKeyFile>$(MSBuildThisFileDirectory)Key.snk</AssemblyOriginatorKeyFile>
-    <LangVersion>7.2</LangVersion>
+    <LangVersion>7.3</LangVersion>
   </PropertyGroup>
   <ItemGroup>
     <PackageReference Include="Microsoft.NETCore.Compilers" Version="$(RoslynVersion)" PrivateAssets="All" />
diff --git a/tools/dependencies.props b/tools/dependencies.props
index 2e680447e54..cd3a8d81b45 100644
--- a/tools/dependencies.props
+++ b/tools/dependencies.props
@@ -2,7 +2,7 @@
   <PropertyGroup>
     <RuntimeFrameworkVersion>2.1.0-preview2-26312-01</RuntimeFrameworkVersion>
     <CoreFxStableVersion>4.3.0</CoreFxStableVersion>
-    <RoslynVersion>2.6.0-beta3-62316-02</RoslynVersion>
+    <RoslynVersion>2.8.0-beta2-62708-09</RoslynVersion>
     <SystemMemoryVersion>4.5.0-preview2-26312-02</SystemMemoryVersion>
     <SystemCompilerServicesUnsafeVersion>4.5.0-preview2-26312-02</SystemCompilerServicesUnsafeVersion>
     <SystemNumericsVectorsVersion>4.5.0-preview2-26312-02</SystemNumericsVectorsVersion>