Fix msbuild package references

Author: tmat

eng/targets/BuildTask.props

@@ -0,0 +1,14 @@
+<!-- Licensed to the .NET Foundation under one or more agreements. The .NET Foundation licenses this file to you under the MIT license. See the LICENSE file in the project root for more information. -->
+<Project>
+
+   <!--
+   Included in projects that define msbuild tasks.
+   -->
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Build.Framework" ExcludeAssets="Runtime" />
+    <PackageReference Include="Microsoft.Build.Tasks.Core" ExcludeAssets="Runtime" />
+    <PackageReference Include="System.Memory" Condition="'$(TargetFrameworkIdentifier)' != '.NETCoreApp'" />
+    <PackageReference Include="System.Runtime.CompilerServices.Unsafe" Condition="'$(TargetFrameworkIdentifier)' != '.NETCoreApp'" />
+  </ItemGroup>
+</Project>

src/Compilers/Core/MSBuildTask/Directory.Build.props

@@ -1,6 +1,7 @@
 <!-- Copyright (c)  Microsoft.  All Rights Reserved.  Licensed under the MIT license.  See License.txt in the project root for license information. -->
 <Project>
   <Import Project="$([MSBuild]::GetPathOfFileAbove('Directory.Build.props', '$(MSBuildThisFileDirectory)../'))" />
+  <Import Project="$(RepositoryEngineeringDir)targets\BuildTask.props" />
 
   <PropertyGroup>
     <DefaultLanguage>en-US</DefaultLanguage>

src/Compilers/Core/MSBuildTask/Directory.Build.targets

@@ -2,10 +2,6 @@
 <!-- Licensed to the .NET Foundation under one or more agreements. The .NET Foundation licenses this file to you under the MIT license. See the LICENSE file in the project root for more information. -->
 <Project>
   <ItemGroup>
-    <PackageReference Include="Microsoft.Build.Framework" ExcludeAssets="Runtime" />
-    <PackageReference Include="Microsoft.Build.Tasks.Core" ExcludeAssets="Runtime" />
-    <PackageReference Include="System.Memory" Condition="'$(TargetFrameworkIdentifier)' != '.NETCoreApp'" />
-    <PackageReference Include="System.Runtime.CompilerServices.Unsafe" Condition="'$(TargetFrameworkIdentifier)' != '.NETCoreApp'" />
     <CompilerVersionTargetsFile Include="$(IntermediateOutputPath)Microsoft.Managed.Core.CurrentVersions.targets" />
   </ItemGroup>
   <Target Name="GenerateCompilerVersionTargets" BeforeTargets="AssignTargetPaths" DependsOnTargets="GenerateCompilerVersionTargetsFile">

src/Tools/SemanticSearch/BuildTask/SemanticSearch.BuildTask.csproj

@@ -5,16 +5,14 @@
     <AutoGenerateAssemblyVersion>true</AutoGenerateAssemblyVersion>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
   </PropertyGroup>
-  <ItemGroup>
-    <PackageReference Include="Microsoft.Build.Framework" Version="$(RefOnlyMicrosoftBuildFrameworkVersion)" />
-    <PackageReference Include="Microsoft.Build.Tasks.Core" Version="$(RefOnlyMicrosoftBuildTasksCoreVersion)" />
-  </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\..\..\Compilers\Core\Portable\Microsoft.CodeAnalysis.csproj" Private="true" />
     <ProjectReference Include="..\..\..\Compilers\CSharp\Portable\Microsoft.CodeAnalysis.CSharp.csproj" Private="true" />
   </ItemGroup>
   <ItemGroup>
     <InternalsVisibleTo Include="SemanticSearch.BuildTask.UnitTests" />
   </ItemGroup>
+
+  <Import Project="$(RepositoryEngineeringDir)targets\BuildTask.props" />
   <Import Project="..\..\..\Dependencies\Contracts\Microsoft.CodeAnalysis.Contracts.projitems" Label="Shared" />
 </Project>