https://bugs.webkit.org/show_bug.cgi?id=228079 Reviewed by Devin Rousso. * UserInterface/Protocol/Legacy/15.0/InspectorBackendCommands.js: Added. * Versions/Inspector-iOS-15.0.json: Added. Canonical link: https://commits.webkit.org/239770@main git-svn-id: https://svn.webkit.org/repository/webkit/trunk@280035 268f45cc-cd09-0410-ab3c-d52691b4dbfc