[WIP] Fix Qodana problems in retrieve attribute fake implementation

[Copilot]

Thanks for the feedback on #40. I've created this new PR, which merges into #40, to address your comment. I will work on the changes and keep this PR's description up to date as I make progress.

Original PR: #40
Triggering comment (#40 (comment)):

@copilot check the Qodana problems and fix them. prepare the changes in a separate PR so we can review it before merging into this branch

[github-actions]

Qodana Community for .NET

40 new problems were found

Inspection name	Severity	Problems
Redundant nullable warning suppression expression	🔶 Warning	3
Nullability of type argument doesn't match constraint type.	🔶 Warning	2
Use collection expression syntax	◽️ Notice	19
Inconsistent Naming	◽️ Notice	6
Convert delegate variable into local function	◽️ Notice	5
Use object or collection initializer when possible	◽️ Notice	5

View the detailed Qodana report

To be able to view the detailed Qodana report, you can either:

• Register at Qodana Cloud and configure the action
• Use GitHub Code Scanning with Qodana
• Host Qodana report at GitHub Pages
• Inspect and use qodana.sarif.json (see the Qodana SARIF format for details)

To get *.log files or any other Qodana artifacts, run the action with upload-result option set to true,
so that the action will upload the files as the job artifacts:

      - name: 'Qodana Scan'
        uses: JetBrains/qodana-action@v2026.1.0
        with:
          upload-result: true

Contact Qodana team

Contact us at qodana-support@jetbrains.com

• Or via our issue tracker: https://jb.gg/qodana-issue
• Or share your feedback: https://jb.gg/qodana-discussions

[LarsBauer]

@copilot this doesnt resolve the issues at all. please have a long at the sarif file generated by the qodana check. it has all the information you need to fix the issues.

[Copilot]

@copilot this doesnt resolve the issues at all. please have a long at the sarif file generated by the qodana check. it has all the information you need to fix the issues.

Addressed in 34129cd. I reproduced the RetrieveAttribute SARIF findings locally with InspectCode, cleared the findings in the touched files, and re-ran build, targeted tests, the full test suite, and final validation.