Treat compiled cmdlet OutputType as a first-class, pipeline-resolvable type source during parse-time completion

### Prerequisites

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- [x] Refer to [Differences between Windows PowerShell 5.1 and PowerShell](https://learn.microsoft.com/powershell/scripting/whats-new/differences-from-windows-powershell).

### Steps to reproduce

I am experiencing a problem with completion. I think Tab and Ctrl + Space should work but they don't show anything.

### Expected behavior

```console
PS> Get-AppxPackage | Select-Object -Property Pa [Ctrl + Space]
PackageFamilyName       PackageFullName         PackageUserInformation
```

### Actual behavior

```console
PS> Get-AppxPackage | Select-Object -Property Pa [Ctrl + Space]
[EMPTINESS]
```

### Error details

```console
Works fine with Get-ChildItem:
PS> Get-ChildItem | Select-Object -Property La [Ctrl + Space]
LastAccessTime       LastAccessTimeUtc    LastWriteTime        LastWriteTimeString  LastWriteTimeUtc


Also with simple wrapper function:
function Get-AppxPackageX {
    [CmdletBinding()]
    [OutputType([Microsoft.Windows.Appx.PackageManager.Commands.AppxPackage])]
    param()

    Get-AppxPackage @PSBoundParameters
}
```

### Environment data

```powershell
Name                           Value
----                           -----
PSVersion                      7.6.0
PSEdition                      Core
GitCommitId                    7.6.0
OS                             Microsoft Windows 10.0.26100
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0&hellip;}
PSRemotingProtocolVersion      2.4
SerializationVersion           1.1.0.1
WSManStackVersion              3.0
```

### Visuals

<img width="608" height="132" alt="Image" src="https://github.com/user-attachments/assets/94c88b7f-26f0-4f80-8392-1007834cbdd9" />

<img width="608" height="132" alt="Image" src="https://github.com/user-attachments/assets/8c5521e1-8eb8-4ca1-b351-60d0338884d2" />

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Treat compiled cmdlet OutputType as a first-class, pipeline-resolvable type source during parse-time completion #27285

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Treat compiled cmdlet OutputType as a first-class, pipeline-resolvable type source during parse-time completion #27285

Description

Prerequisites

Steps to reproduce

Expected behavior

Actual behavior

Error details

Environment data

Visuals

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions