Unexpected UseDeclaredVarsMoreThanAssignments warning in pipeline

[tk627]

Steps to reproduce

Run Invoke-ScriptAnalyzer against the following with the new 1.19.1 release.

$foundFile = $false
Get-ChildItem -Path . -File -Filter *.msi | ForEach-Object {
    $foundFile = $true
}
Write-Output "File found $foundFile"

Expected behavior

No rule violations.

Actual behavior

The variable 'foundFile' is assigned but never used. PSScriptAnalyzer(PSUseDeclaredVarsMoreThanAssignments) [3, 5]

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                      5.1.18362.1474
PSEdition                      Desktop
PSCompatibleVersions           {1.0, 2.0, 3.0, 4.0...}
BuildVersion                   10.0.18362.1474
CLRVersion                     4.0.30319.42000
WSManStackVersion              3.0
PSRemotingProtocolVersion      2.3
SerializationVersion           1.1.0.1

> (Get-Module -ListAvailable PSScriptAnalyzer).Version | ForEach-Object { $_.ToString() }
1.19.1

[rjmholt]

Duplicate of #1163