Summary of the new feature / enhancement

Output from executables like ipconfig.exe are saved as strings in PowerShell. The type inference should be aware of this so we can get tab completion like: ipconfig.exe | foreach {$_.<Tab>
One problem here is that there's no way for PowerShell to know whether or not an executable actually outputs anything, but I think it's safe to assume that every executable outputs something and when that assumption is wrong the end user probably won't notice anyway since they have no reason to attempt to tab complete the output.

Proposed technical implementation details (optional)

No response