Measure-Command cmdlet Hides Variable Use

[Jlcsk8r]

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• Make sure you are able to repro it on the latest released version
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Steps to reproduce

#You do not need to run the code, just enter it into the Visual Studio Code console.

$TimeToGetUsers = Measure-Command {$TargetUsers = get-aduser -server some.domain.com -SearchScope OneLevel}
$TotalUsers     = $TargetUsers.Count
$TargetUsers
Write-Host ('Found ' + $TotalUsers + ' Users in ' + $TimeToGetUsers.TotalSeconds + ' seconds.') -ForegroundColor Green

Expected behavior

No error on variable assignment or use.

Actual behavior

The variable 'TargetUsers' is assigned but never used.

If an unexpected error was thrown then please report the full error details using e.g. $error[0] | Select-Object *

Environment data

> $PSVersionTable
Name                           Value
----                           -----
PSVersion                      5.1.17763.1490
PSEdition                      Desktop
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
BuildVersion                   10.0.17763.1490
CLRVersion                     4.0.30319.42000
WSManStackVersion              3.0
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1

and 

Name                           Value
----                           -----
PSVersion                      7.1.2
PSEdition                      Core
GitCommitId                    7.1.2
OS                             Microsoft Windows 10.0.17763
Platform                       Win32NT
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0…}
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1
WSManStackVersion              3.0


> (Get-Module -ListAvailable PSScriptAnalyzer).Version | ForEach-Object { $_.ToString() }

1.19.0

[rjmholt]

Duplicate of #1163.

See #1641.