Add <Link> tags to the '<Compile>', '<None>' and '<EmbeddedResource>' for the *.csproj files in PowerShell/PowerShell. This is to make sure in Visual Studio all file items are organized in the appropriate folders.

Add-LinkElement.ps1

function Add-LinkElement
{
    param(
        [Parameter(Mandatory=$true)]
        [string]$csprojPath,

        [Parameter(Mandatory=$true)]
        [string]$projectName,

        [Parameter(Mandatory=$true)]
        [string]$outputPath
    )

    $relativePath = "..\$projectName\"
    $xmlDoc = [xml](Get-Content $csprojPath)
    
    foreach ($itemGroup in $xmlDoc.Project.ItemGroup)
    {
        foreach ($childNode in $itemGroup.ChildNodes)
        {
            if ($childNode.Name -eq "Compile" -or
                $childNode.Name -eq "None" -or
                $childNode.Name -eq "EmbeddedResource")
            {
                $link = $childNode.Include.Substring($relativePath.Length)
                $linkNode = $xmlDoc.CreateElement("Link", $xmlDoc.DocumentElement.NamespaceURI)
                $linkNode.InnerText = $link
                
                $childNode.AppendChild($linkNode) > $null
            }
        }
    }

    $xmlWriterSetting = [System.Xml.XmlWriterSettings]::new()
    $xmlWriterSetting.Indent = $true
    $xmlWriterSetting.IndentChars = "  "
    $xmlWriter = [System.Xml.XmlWriter]::Create($outputPath, $xmlWriterSetting)

    $xmlDoc.Save($xmlWriter)
    $xmlWriter.Flush()
    $xmlWriter.Dispose()
}

Add-LinkElement -csprojPath .\src\vs-csproj\Microsoft.PowerShell.Commands.Management.csproj `
                -projectName Microsoft.PowerShell.Commands.Management `
                -outputPath C:\arena\tmp\Microsoft.PowerShell.Commands.Management.csproj