Copy ObjectPool.dll to output folder (#11783)

This bit me on a clean machine for an undisclosed amount of time.

Author: davidwengier

src/Razor/src/Microsoft.VisualStudioCode.RazorExtension/Microsoft.VisualStudioCode.RazorExtension.csproj

@@ -22,7 +22,7 @@
     <!-- Below package references are covered by the binaries shipped by roslyn and do not need to be packaged-->
     <PackageReference Include="Microsoft.CodeAnalysis.CSharp" />
     <PackageReference Include="Microsoft.CodeAnalysis.Workspaces.Common" />
-    <PackageReference Include="Microsoft.Extensions.ObjectPool" />
+    <PackageReference Include="Microsoft.Extensions.ObjectPool" GeneratePathProperty="true" />
     <PackageReference Include="Microsoft.Extensions.Logging" />
     <PackageReference Include="Microsoft.CodeAnalysis.ExternalAccess.Razor.Features" />
   </ItemGroup>
@@ -42,6 +42,11 @@
     <InternalsVisibleTo Include="Microsoft.VisualStudioCode.RazorExtension.Test" Key="$(RazorKey)" />
   </ItemGroup>
 
+  <ItemGroup>
+      <!-- Need to make sure ObjectPool is in the bin folder for local development scenarios -->
+      <None Include="$(PkgMicrosoft_Extensions_ObjectPool)\lib\net8.0\Microsoft.Extensions.ObjectPool.dll" CopyToOutputDirectory="PreserveNewest" Visible="false" />
+  </ItemGroup>
+
   <Target Name="PackPublishContent" DependsOnTargets="Publish">
     <ItemGroup>
       <Content Include="$(TargetPath)" Pack="true" PackagePath="content" CopyToOutputDirectory="PreserveNewest" />