PsScriptAnalyzer Falsely Recognizes Global Variable As Assigned But Not Used

[avelis26]

VSCode Version: 1.17.0
OS Edition: Windows 10 Pro
OS Version: 1703
OS Build: 15063.674
Ext Version: 1.4.3

1.17.2
b813d12980308015bcd2b3a2f6efa5c810c33ba5

Major  Minor  Build  Revision
-----  -----  -----  --------
1      4      1      0
ms-vscode.PowerShell@1.4.3
robertohuertasm.vscode-icons@7.15.0

Key   : PSVersion
Value : 5.1.15063.674
Name  : PSVersion

Key   : PSEdition
Value : Desktop
Name  : PSEdition

Key   : PSCompatibleVersions
Value : {1.0, 2.0, 3.0, 4.0...}
Name  : PSCompatibleVersions

Key   : BuildVersion
Value : 10.0.15063.674
Name  : BuildVersion

Key   : CLRVersion
Value : 4.0.30319.42000
Name  : CLRVersion

Key   : WSManStackVersion
Value : 3.0
Name  : WSManStackVersion

Key   : PSRemotingProtocolVersion
Value : 2.3
Name  : PSRemotingProtocolVersion

Key   : SerializationVersion
Value : 1.1.0.1
Name  : SerializationVersion

Issue Description

PsScriptAnalyzer Falsely Recognizes Global Variable As Assigned But Not Used
Obviously not a critical issue but it is kind of annoying having that green squiggly line under a variable that WILL be used.

Repro Steps

1. Open VS Code and create a PowerShell file (PowerShell extension installed obviously).
2. Paste the below example code.
3. Note that $global:eventType is underlined as a 'PSUseDeclaredVarsMoreThanAssignments' error.

function Write-ErrorDetails {
	$global:eventType = 'Error'
	Write-Error -Message 'An error happened.' -ErrorId $statusCode
}
try {
	Write-Output 'hello world'
	$statusCode = 0
	throw 'eventType variable is totally going to get used now!'
}
catch {
	$statusCode = 1
	Write-ErrorDetails
}
finally {
	Write-EventLog -LogName 'Applicatoin' -Source 'MyScript' -EntryType $global:eventType
}

[rkeithhill]

You should file this in the PSSA project.

[daviwil]

Resolving as duplicate of PowerShell/PSScriptAnalyzer#698, please subscribe to that issue to be notified when the issue gets resolved. Thanks!