The introduction of QQmlCodeModelManager made the per-root-url build path map of QQmlCodeModel redundant. Replace the per-root-url build path map with a single list of build paths. The API is adjusted accordingly: - replace buildPathsForRootUrl() with buildPaths() - replace setBuildPathsForRootUrl() with setBuildPaths() - remove unused helpers for root-url matching The build paths are now stored in a QStringList instead of a QHash keyed by root URL. This simplifies the logic in buildPathsForFileUrl(), which now falls back directly to settings when no explicit build paths are set via the environment or the commandline option of qmlls. Also fix a test to actually write a settings file on disk, as we now avoid reading settings values if no settings file was found. Change-Id: I4e7f409a9cf1368cc6afa134a1386fd98833693f Reviewed-by: Ulf Hermann <ulf.hermann@qt.io>