Only build platform-specific native assets in native build in VMR (#60896)

* Only build platform-specific native assets in native build

* Fix build

* Quote

Author: wtgodbe

eng/Build.props

@@ -55,6 +55,12 @@
                       $(RepoRoot)src\Servers\Kestrel\perf\PlatformBenchmarks\**\*.csproj;
                       $(RepoRoot)src\SignalR\perf\benchmarkapps\**\*.csproj;
                       " />
+
+    <!-- This project requires inputs from x64, x86, and arm64 on Windows - therefore in the VMR, we build it in pass 2 -->
+    <ProjectToExclude Include="
+                      $(RepoRoot)src\Servers\IIS/IntegrationTesting.IIS\src\Microsoft.AspNetCore.Server.IntegrationTesting.IIS.csproj;
+                      "
+                      Condition=" '$(TargetOsName)' == 'win' and '$(DotNetBuild)' == 'true' and ('$(DotNetBuildPass)' == '' or '$(DotNetBuildPass)' == '1') " />
   </ItemGroup>
 
   <Choose>
@@ -76,11 +82,20 @@
           <AdditionalProperties>Platform=x86</AdditionalProperties>
           <DotNetBuildPass>$(DotNetBuildPass)</DotNetBuildPass>
         </ProjectToBuild>
+        <ProjectToBuild Include="$(RepoRoot)src\Servers\IIS/IntegrationTesting.IIS\src\Microsoft.AspNetCore.Server.IntegrationTesting.IIS.csproj" >
+          <DotNetBuildPass>$(DotNetBuildPass)</DotNetBuildPass>
+        </ProjectToBuild>
       </ItemGroup>
     </When>
     <Otherwise>
       <!-- BuildNative -->
-      <ItemGroup Condition=" '$(TargetOsName)' == 'win' AND ('$(TargetArchitecture)' == 'x86' OR '$(TargetArchitecture)' == 'x64' OR '$(TargetArchitecture)' == 'arm64') ">
+      <ItemGroup Condition=" '$(TargetOsName)' == 'win' AND '$(DotNetBuild)' == 'true' ">
+        <NativeProjects Condition="'$(TargetArchitecture)' == 'x64'" Include="$(RepoRoot)src\**\*.vcxproj" Exclude="@(ProjectToExclude)" AdditionalProperties="Platform=x64" />
+        <NativeProjects Condition="'$(TargetArchitecture)' == 'x86'" Include="$(RepoRoot)src\**\*.vcxproj" Exclude="@(ProjectToExclude)" AdditionalProperties="Platform=Win32" />
+        <NativeProjects Condition="'$(TargetArchitecture)' == 'arm64'" Include="$(RepoRoot)src\**\*.vcxproj" Exclude="@(ProjectToExclude)" AdditionalProperties="Platform=arm64" />
+      </ItemGroup>
+
+      <ItemGroup Condition=" '$(TargetOsName)' == 'win' AND '$(DotNetBuild)' != 'true' AND ('$(TargetArchitecture)' == 'x86' OR '$(TargetArchitecture)' == 'x64' OR '$(TargetArchitecture)' == 'arm64') ">
         <NativeProjects Include="$(RepoRoot)src\**\*.vcxproj" Exclude="@(ProjectToExclude)" AdditionalProperties="Platform=x64" />
         <NativeProjects Include="$(RepoRoot)src\**\*.vcxproj" Exclude="@(ProjectToExclude)" AdditionalProperties="Platform=Win32" />
         <NativeProjects Include="$(RepoRoot)src\**\*.vcxproj" Exclude="@(ProjectToExclude)" AdditionalProperties="Platform=arm64" />