Add completion for values in comparisons when comparing Enums

[MartinGC94]

PR Summary

Adds completion for scenarios like Get-VM | where State -eq <Tab> and Get-VM | where {$_.State -eq <Tab>}
This only works when the left side of the comparison is an enum.
Also, due to the bug mentioned here: #17653 it doesn't work when you explicitly specify the Property parameter like this: Get-VM | Where-Object -Property State -EQ you can work around this by either not specifying -Property or by explicitly specifying -Value

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[ghost]

This pull request has been automatically marked as Review Needed because it has been there has not been any activity for 7 days.
Maintainer, please provide feedback and/or mark it as Waiting on Author

[iSazonov]

Hmm, looking that last commit I think about Roslin trivia. :-)

[ghost]

This pull request has been automatically marked as Review Needed because it has been there has not been any activity for 7 days.
Maintainer, please provide feedback and/or mark it as Waiting on Author

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This PR has 87 quantified lines of changes. In general, a change size of upto 200 lines is ideal for the best PR experience!

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Label      : Small
Size       : +87 -0
Percentile : 34.8%

Total files changed: 3

Change summary by file extension:
.cs : +71 -0
.ps1 : +16 -0

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[daxian-dbw]

LGTM!

[ghost]

🎉v7.4.0-preview.1 has been released which incorporates this pull request.:tada:

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