Add all custom build files to MSBuildAllProjects

Directory.Build.props and Directory.Build.targets are handled by the
project system, so are not included in this change.

build/Targets/AfterCommonTargets.targets

 <!-- Copyright (c)  Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information. -->
 <Project>
 
+  <PropertyGroup>
+    <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
+  </PropertyGroup>
+
 </Project>

build/Targets/BeforeCommonTargets.targets

@@ -2,6 +2,10 @@
 <!-- Copyright (c)  Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information. -->
 <Project>
 
+  <PropertyGroup>
+    <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
+  </PropertyGroup>
+
   <Choose>
     <When Condition="'$(RoslynProjectType)' == 'UnitTest' OR '$(RoslynProjectType)' == 'UnitTestPortable'">
       <PropertyGroup>

build/Targets/DisableStandardFrameworkResolution.targets

@@ -2,6 +2,10 @@
 <!-- Copyright (c)  Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information. -->
 <Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 
+  <PropertyGroup>
+    <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
+  </PropertyGroup>
+
   <Target Name="GetReferenceAssemblyPaths" />
   <Target Name="GetFrameworkPaths" />
 

build/Targets/DisableVsixManifestTargets.targets

 <?xml version="1.0" encoding="utf-8"?>
 <!-- Copyright (c)  Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information. -->
 <Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+
+  <PropertyGroup>
+    <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
+  </PropertyGroup>
+
   <!-- Fix design-time builds so projects have IntelliSense -->
   <Target Name="VSIXNameProjectOutputGroup" />
   <Target Name="VSIXIdentifierProjectOutputGroup" />

build/Targets/FixedPackages.props

@@ -2,6 +2,10 @@
 <!-- Copyright (c)  Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information. -->
 <Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 
+  <PropertyGroup>
+    <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
+  </PropertyGroup>
+
   <PropertyGroup>
     <MicrosoftBuildFixedVersion>14.3.0</MicrosoftBuildFixedVersion>
     <MicrosoftBuildTasksCoreFixedVersion>14.3.0</MicrosoftBuildTasksCoreFixedVersion>

build/Targets/GenerateAssemblyInfo.targets

 <?xml version="1.0" encoding="utf-8"?>
 <!-- Copyright (c)  Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information. -->
 <Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+
+  <PropertyGroup>
+    <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
+  </PropertyGroup>
+
   <PropertyGroup>
     <GeneratedAssemblyInfoFile>$(IntermediateOutputPath)GeneratedAssemblyInfo_$(BuildVersion)$(DefaultLanguageSourceExtension)</GeneratedAssemblyInfoFile>
   </PropertyGroup>

build/Targets/GenerateCompilerExecutableBindingRedirects.targets

 <?xml version="1.0" encoding="utf-8"?>
 <!-- Copyright (c)  Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information. -->
 <Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+
+  <PropertyGroup>
+    <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
+  </PropertyGroup>
+
   <!-- The inclusion of this file will cause the resulting .exe.config to contain redirects for our core compiler assemblies,
        which is needed for things like analyzers to load. -->
 

build/Targets/GenerateInternalsVisibleTo.targets

 <?xml version="1.0" encoding="utf-8"?>
 <!-- Copyright (c)  Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information. -->
 <Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+
+  <PropertyGroup>
+    <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
+  </PropertyGroup>
+
   <PropertyGroup>
     <GeneratedInternalsVisibleToFile>$(IntermediateOutputPath)GeneratedInternalsVisibleTo$(DefaultLanguageSourceExtension)</GeneratedInternalsVisibleToFile>
   </PropertyGroup>

build/Targets/GetProjectsReferencingProjectJsonFiles.targets

 <?xml version="1.0" encoding="utf-8"?>
 <!-- Copyright (c)  Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information. -->
 <Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+
+  <PropertyGroup>
+    <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
+  </PropertyGroup>
+
   <UsingTask TaskName="ProjectReferencesTask" AssemblyFile="$(NuGetTasksAssemblyPath)" Condition="'$(MSBuildThisFileExtension)' == '.xproj'" />
   <Target Name="_NuGet_GetProjectsReferencingProjectJsonInternal"
           DependsOnTargets="_SplitProjectReferencesByFileExistence"

build/Targets/GetProjectsReferencingProjectJsonFilesEntryPoint.targets

 <?xml version="1.0" encoding="utf-8"?>
 <!-- Copyright (c)  Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information. -->
 <Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+
+  <PropertyGroup>
+    <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
+  </PropertyGroup>
+
   <Target Name="NuGet_GetProjectsReferencingProjectJson">
     <ItemGroup>
       <NuGet_ProjectReferenceToResolveItems Include="$(NuGet_ProjectReferenceToResolve)" />

build/Targets/Microsoft.Net.Compilers.props

@@ -2,6 +2,10 @@
 <!-- Copyright (c)  Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information. -->
 <Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 
+  <PropertyGroup>
+    <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
+  </PropertyGroup>
+
   <PropertyGroup>
     <ToolsetCompilerPath>$(NuGetPackageRoot)\Microsoft.Net.Compilers\$(ToolsetCompilerPackageVersion)\tools</ToolsetCompilerPath>
   </PropertyGroup>

build/Targets/Packages.props

@@ -2,6 +2,10 @@
 <!-- Copyright (c)  Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information. -->
 <Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 
+  <PropertyGroup>
+    <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
+  </PropertyGroup>
+
   <PropertyGroup>
     <BasicUndoVersion>0.9.3</BasicUndoVersion>
     <CommandLineParserVersion>2.0.273-beta</CommandLineParserVersion>

build/Targets/Roslyn.Toolsets.Xunit.targets

@@ -2,6 +2,10 @@
 <!-- Copyright (c)  Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information. -->
 <Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 
+  <PropertyGroup>
+    <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
+  </PropertyGroup>
+
   <PropertyGroup>
     <!-- xUnit.net Console Runner -->
     <XUnitPath>$(NuGetPackageRoot)\xunit.runner.console\$(xunitrunnerconsoleVersion)\tools\net452\xunit.console.x86.exe</XUnitPath>

build/Targets/Settings.props

@@ -2,6 +2,10 @@
 <!-- Copyright (c)  Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information. -->
 <Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 
+  <PropertyGroup>
+    <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
+  </PropertyGroup>
+
   <PropertyGroup>
     <RepoRoot>$([System.IO.Path]::GetFullPath('$(MSBuildThisFileDirectory)..\..\'))</RepoRoot>
     <RepositoryUrl>https://github.com/dotnet/roslyn</RepositoryUrl>

build/Targets/Tools.props

 <?xml version="1.0" encoding="utf-8"?>
 <!-- Copyright (c)  Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information. -->
 <Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+
+  <PropertyGroup>
+    <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
+  </PropertyGroup>
+
   <PropertyGroup>
     <dotnetRuntimeVersion>2.0.0</dotnetRuntimeVersion>
     <dotnetSdkVersion>2.2.0-preview1-007622</dotnetSdkVersion>

build/Targets/Versions.props

@@ -2,6 +2,10 @@
 <!-- Copyright (c)  Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information. -->
 <Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
 
+  <PropertyGroup>
+    <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
+  </PropertyGroup>
+
   <Import Project="RepoToolset\GitHash.props" />
  
   <!-- This controls the version numbers of the build that we are producing -->

build/Targets/Vsdconfig.targets

 <?xml version="1.0" encoding="utf-8"?>
 <!-- Copyright (c)  Microsoft.  All Rights Reserved.  Licensed under the Apache License, Version 2.0.  See License.txt in the project root for license information. -->
 <Project ToolsVersion="14.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+
+  <PropertyGroup>
+    <MSBuildAllProjects>$(MSBuildAllProjects);$(MSBuildThisFileFullPath)</MSBuildAllProjects>
+  </PropertyGroup>
+
   <Target Name="GenerateVsdconfig"
           AfterTargets="CoreCompile"
           BeforeTargets="AfterCompile"