Add analyzer to prevent local functions accessing RenderTreeBuilder from parent scope#63826

Copilot wants to merge 3 commits intomaindotnet/aspnetcore:mainfrom

copilot/fix-786077d2-7ae1-4997-8907-79fb54489d2adotnet/aspnetcore:copilot/fix-786077d2-7ae1-4997-8907-79fb54489d2aCopy head branch name to clipboard