Clean up VS experience for s.p.corelib.csproj (dotnet/coreclr#13481)

* Remove bogus assembly warnings in VS

* Fix warnings about sharing files within the project tree

* Remove bogus lines

* Remove lines showing up as bogus source files

* Remove overridden target

* feedback


Commit migrated from https://github.com/dotnet/coreclr/commit/151002c8814c2f9fdbc0979c6737f6a3e1878fba

src/coreclr/src/mscorlib/System.Private.CoreLib.csproj

 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="14.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-   <!-- Include common build properties -->
+  <!-- Include common build properties -->
   <Import Project="$([MSBuild]::GetDirectoryNameOfFileAbove($(MSBuildThisFileDirectory), dir.props))\dir.props" />
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
   <!-- Compilation options -->
@@ -44,6 +44,7 @@
   <ItemGroup>
     <AssemblyMetadata Include="Serviceable">
       <Value>True</Value>
+      <Visible>false</Visible>
     </AssemblyMetadata>
   </ItemGroup>
   <!-- Platform specific properties -->
@@ -96,13 +97,6 @@
     <MinorVersion>6</MinorVersion>
     <ExcludeAssemblyInfoPartialFile>true</ExcludeAssemblyInfoPartialFile>
   </PropertyGroup>
-  <ItemGroup>
-    <AssemblyInfoLines Include="[assembly: System.Resources.SatelliteContractVersion(&quot;$(AssemblyVersion)&quot;)]" />
-    <AssemblyInfoLines Include="[assembly: System.Security.AllowPartiallyTrustedCallers]" />
-    <AssemblyInfoLines Include="[assembly: System.Runtime.InteropServices.ComVisible(false)]" />
-    <AssemblyInfoLines Include="[assembly: System.Resources.NeutralResourcesLanguage(&quot;en-US&quot;)]" />
-    <AssemblyInfoLines Include="[assembly: System.Runtime.InteropServices.DefaultDllImportSearchPathsAttribute(System.Runtime.InteropServices.DllImportSearchPath.AssemblyDirectory | System.Runtime.InteropServices.DllImportSearchPath.System32)]" />
-  </ItemGroup>
   <!--
     Helper Paths
   -->
@@ -650,19 +644,17 @@
   <ItemGroup>
     <Compile Include="src\System\Runtime\RuntimeImports.cs" />
   </ItemGroup>
-  <Import Project="shared\System.Private.CoreLib.Shared.projitems" Label="Shared" />
+  <Import Project="shared\System.Private.CoreLib.Shared.projitems" />
   <PropertyGroup>
     <CheckCDefines Condition="'$(CheckCDefines)'==''">true</CheckCDefines>
   </PropertyGroup>
   <Target Name="CDefineChecker" BeforeTargets="Build" Condition="'$(CheckCDefines)'=='true'">
     <!-- Compiler Definition Verification -->
-    <Message Importance="High" Text="============" />
     <PropertyGroup>
       <IgnoreDefineConstants>FEATURE_IMPLICIT_TLS;FEATURE_HIJACK</IgnoreDefineConstants>
       <CMakeDefinitionSaveFile>$(IntermediateOutputPath)\cmake.definitions</CMakeDefinitionSaveFile>
     </PropertyGroup>
     <Exec Command="python $(MSBuildThisFileDirectory)..\scripts\check-definitions.py &quot;$(CMakeDefinitionSaveFile)&quot; &quot;$(DefineConstants)&quot; &quot;$(IgnoreDefineConstants)&quot; " />
-    <Message Importance="High" Text="============" />
   </Target>
   <PropertyGroup Condition="'$(BuildOS)' == 'Windows_NT'">
     <EnableDotnetAnalyzers Condition="'$(EnableDotnetAnalyzers)'==''">true</EnableDotnetAnalyzers>
@@ -687,4 +679,4 @@
     <Win32Resource Condition="'$(GenerateNativeVersionInfo)'=='true'">$(IntermediateOutputPath)\System.Private.CoreLib.res</Win32Resource>
   </PropertyGroup>
   <Import Project="GenerateCompilerResponseFile.targets" />
-</Project>
+</Project>
\ No newline at end of file

src/coreclr/src/mscorlib/System.Private.CoreLib.sln

 
 Microsoft Visual Studio Solution File, Format Version 12.00
 # Visual Studio 15
-VisualStudioVersion = 15.0.26208.0
+VisualStudioVersion = 15.0.26817.0
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "System.Private.CoreLib", "System.Private.CoreLib.csproj", "{3DA06C3A-2E7B-4CB7-80ED-9B12916013F9}"
 EndProject
-Project("{D954291E-2A0B-460D-934E-DC6B0785DB48}") = "System.Private.CoreLib.Shared", "shared\System.Private.CoreLib.Shared.shproj", "{C5ED3C1D-B572-46F1-8F96-522A85CE1179}"
-EndProject
 Global
-	GlobalSection(SharedMSBuildProjectFiles) = preSolution
-		shared\System.Private.CoreLib.Shared.projitems*{3da06c3a-2e7b-4cb7-80ed-9b12916013f9}*SharedItemsImports = 4
-		shared\System.Private.CoreLib.Shared.projitems*{c5ed3c1d-b572-46f1-8f96-522a85ce1179}*SharedItemsImports = 13
-	EndGlobalSection
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Checked|amd64 = Checked|amd64
 		Checked|arm = Checked|arm
@@ -55,4 +49,7 @@ Global
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
 	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {DA05075A-7CDA-4F65-AF6A-CB5DB6CF936F}
+	EndGlobalSection
 EndGlobal

src/coreclr/src/mscorlib/Tools/Versioning/GenerateVersionInfo.targets

@@ -25,37 +25,13 @@
     <CoreCompileDependsOn>$(CoreCompileDependsOn);GenerateAssemblyInfo</CoreCompileDependsOn>
   </PropertyGroup>
 
-  <Target Name="GenerateAssemblyInfo"
-          Inputs="$(MSBuildProjectFile)"
-          Outputs="$(AssemblyInfoFile)"
-          Condition="'$(GenerateAssemblyInfo)'=='true'">
-
-    <Error Condition="!Exists('$(IntermediateOutputPath)')" Text="GenerateAssemblyInfo failed because IntermediateOutputPath isn't set to a valid directory" />
-
-    <ItemGroup>
-      <AssemblyInfoUsings Include="using System%3B" />
-      <AssemblyInfoUsings Include="using System.Reflection%3B" />
-      <AssemblyInfoLines Include="[assembly:AssemblyTitle(&quot;$(AssemblyName)&quot;)]" />
-      <AssemblyInfoLines Include="[assembly:AssemblyDescription(&quot;$(AssemblyName)&quot;)]" />
-      <AssemblyInfoLines Include="[assembly:AssemblyDefaultAlias(&quot;$(AssemblyName)&quot;)]" />
-      <AssemblyInfoLines Include="[assembly:AssemblyCompany(&quot;Microsoft Corporation&quot;)]" />
-      <AssemblyInfoLines Include="[assembly:AssemblyProduct(&quot;Microsoft\x00ae .NET Framework&quot;)]" />
-      <AssemblyInfoLines Include="[assembly:AssemblyCopyright(&quot;\x00a9 Microsoft Corporation.  All rights reserved.&quot;)]" />
-      <AssemblyInfoLines Include="[assembly:AssemblyVersion(&quot;$(AssemblyVersion)&quot;)]" />
-      <AssemblyInfoLines Include="[assembly:AssemblyFileVersion(&quot;$(AssemblyFileVersion)&quot;)]" />
-      <AssemblyInfoLines Include="[assembly:AssemblyInformationalVersion(@&quot;$(AssemblyFileVersion)$(BuiltByString)&quot;)]" />
-      <AssemblyInfoLines Condition="'$(CLSCompliant)'=='true'" Include="[assembly:CLSCompliant(true)]" />
-    </ItemGroup>
-
-    <WriteLinesToFile File="$(AssemblyInfoFile)"
-                      Lines="@(AssemblyInfoUsings);@(AssemblyInfoLines)"
-                      Overwrite="true" />
-
-    <ItemGroup>
-      <Compile Include="$(AssemblyInfoFile)" />
-      <FileWrites Include="$(AssemblyInfoFile)" />
-    </ItemGroup>
-  </Target>
+  <ItemGroup>
+      <AssemblyInfoLines Include="[assembly:System.Resources.SatelliteContractVersion(&quot;$(AssemblyVersion)&quot;)]" />
+      <AssemblyInfoLines Include="[assembly:System.Security.AllowPartiallyTrustedCallers]" />
+      <AssemblyInfoLines Include="[assembly:System.Runtime.InteropServices.ComVisible(false)]" />
+      <AssemblyInfoLines Include="[assembly:System.Resources.NeutralResourcesLanguage(&quot;en-US&quot;)]" />
+      <AssemblyInfoLines Include="[assembly:System.Runtime.InteropServices.DefaultDllImportSearchPathsAttribute(System.Runtime.InteropServices.DllImportSearchPath.AssemblyDirectory | System.Runtime.InteropServices.DllImportSearchPath.System32)]" />
+  </ItemGroup>
 
   <!-- #################################### -->
   <!-- Generate Native Version Info -->

src/coreclr/src/mscorlib/shared/System.Private.CoreLib.Shared.projitems

@@ -13,6 +13,11 @@
     <TargetsUnix Condition="'$(TargetsUnix)' != 'true'">false</TargetsUnix>
     <TargetsOSX Condition="'$(TargetsOSX)' != 'true'">false</TargetsOSX>
   </PropertyGroup>
+  <ItemDefinitionGroup>
+    <Compile>
+      <Visible>true</Visible>
+    </Compile>
+  </ItemDefinitionGroup>
   <ItemGroup>
     <Compile Include="$(MSBuildThisFileDirectory)Microsoft\Win32\SafeHandles\CriticalHandleMinusOneIsInvalid.cs" />
     <Compile Include="$(MSBuildThisFileDirectory)Microsoft\Win32\SafeHandles\CriticalHandleZeroOrMinusOneIsInvalid.cs" />

src/coreclr/src/mscorlib/shared/System.Private.CoreLib.Shared.shproj

-<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <!-- Set the properties to prevent any items from being excluded from the IDE view -->
-  <PropertyGroup Label="Globals">
-    <ProjectGuid>c5ed3c1d-b572-46f1-8f96-522a85ce1179</ProjectGuid>
-  </PropertyGroup>
-  <PropertyGroup>
-    <TargetsWindows>true</TargetsWindows>
-    <TargetsUnix>true</TargetsUnix>
-    <TargetsOSX>true</TargetsOSX>
-  </PropertyGroup>
-  <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
-  <Import Project="$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\CodeSharing\Microsoft.CodeSharing.Common.Default.props" />
-  <Import Project="$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\CodeSharing\Microsoft.CodeSharing.Common.props" />
-  <PropertyGroup />
-  <Import Project="System.Private.CoreLib.Shared.projitems" Label="Shared" />
-  <Import Project="$(MSBuildExtensionsPath32)\Microsoft\VisualStudio\v$(VisualStudioVersion)\CodeSharing\Microsoft.CodeSharing.CSharp.targets" />
-</Project>
\ No newline at end of file