SuppressMessageAttribute is not recognized by PSA with "using namespace" import

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

#requires -version 6.1

using namespace Diagnostics.CodeAnalysis;

[SuppressMessage("PSAvoidUsingPlainTextForPassword", "", Justification="Azure Pipelines will obscure the password")]
[CmdletBinding()]
param(
    [Parameter(Mandatory)]
    [ValidateNotNullOrEmpty()]
    [string]$Password, # will be obfuscated by Azure Pipelines

Expected behavior

PSA should not highlight $Password as an violation.

Actual behavior

PSA highlights parameter as being in violation. Using long form [Diagnostics.CodeAnalysis.SuppressMessageAttribute(...)] works as expected.

Environment data

> $PSVersionTable

Name                           Value
----                           -----
PSVersion                      6.2.2
PSEdition                      Core
GitCommitId                    6.2.2
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() }
1.18.0

使用 PSScriptAnalyzer 运行提供的 PowerShell 重现，并比较 using-namespace 属性形式与完全限定形式。跟踪 PSScriptAnalyzer 如何解析 SuppressMessageAttribute；当短形式能够为 Password 参数抑制 PSAvoidUsingPlainTextForPassword 时即完成。