`PSNativeCommandUseErrorActionPreference` usage flagged by `PSUseDeclaredVarsMoreThanAssignments`

[aelij]

Steps to reproduce

$PSNativeCommandUseErrorActionPreference = $true

Expected behavior

No analyzer warning

Actual behavior

The variable 'PSNativeCommandUseErrorActionPreference' is assigned but never used.
PSScriptAnalyzer(PSUseDeclaredVarsMoreThanAssignments)

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                      7.3.1
PSEdition                      Core
GitCommitId                    7.3.1
OS                             Microsoft Windows 10.0.22621
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() }
1.21.0

[StevenBucher98]

$PSNativeCommandUseErrorActionPreference is an experimental feature in 7.3+, its likely it was never added to be excluded from that rule

@bergmeister is there a list of variables that this rule ignores that this could be added to?

[bergmeister]

@StevenBucher98 Yes, you just need to add it to AutomaticVariables and AutomaticVariableTypes here
https://github.com/PowerShell/PSScriptAnalyzer/blob/4869a78ca0330fc45edac27c11a2879dfbe3caef/Engine/SpecialVars.cs

[aelij]

The feature is no longer experimental.