Replace use of QSet::fromList with Qt 5.14 and above

src/collection/collectionview.cpp

@@ -463,7 +463,11 @@ void CollectionView::ShowInVarious(bool on) {
     }
   }
 
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
+  for (const QString &album : QSet<QString>(albums.begin(), albums.end())) {
+#else
   for (const QString &album : QSet<QString>::fromList(albums.keys())) {
+#endif
     app_->collection_backend()->ForceCompilation(album, albums.values(album), on);
   }
 

src/core/standarditemiconloader.cpp

@@ -87,7 +87,11 @@ void StandardItemIconLoader::RowsAboutToBeRemoved(const QModelIndex &parent, int
 
 void StandardItemIconLoader::ModelReset() {
 
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
+  cover_loader_->CancelTasks(QSet<quint64>(pending_covers_.begin(), pending_covers_.end()));
+#else
   cover_loader_->CancelTasks(QSet<quint64>::fromList(pending_covers_.keys()));
+#endif
   pending_covers_.clear();
 
 }

src/covermanager/albumcovermanager.cpp

@@ -251,7 +251,11 @@ void AlbumCoverManager::closeEvent(QCloseEvent *e) {
 
 void AlbumCoverManager::CancelRequests() {
 
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
+  app_->album_cover_loader()->CancelTasks(QSet<quint64>(cover_loading_tasks_.begin(), cover_loading_tasks_.end()));
+#else
   app_->album_cover_loader()->CancelTasks(QSet<quint64>::fromList(cover_loading_tasks_.keys()));
+#endif
   cover_loading_tasks_.clear();
 
   cover_exporter_->Cancel();

src/musicbrainz/musicbrainzclient.cpp

@@ -488,7 +488,11 @@ MusicBrainzClient::ResultList MusicBrainzClient::UniqueResults(const ResultList&
 
   ResultList ret;
   if (opt == SortResults) {
-    ret = QSet<Result>::fromList(results).toList();
+#if (QT_VERSION >= QT_VERSION_CHECK(5, 14, 0))
+    ret = QSet<Result>(results.begin(), results.end()).values();
+#else
+    ret = QSet<Result>::fromList(results).values();
+#endif
     std::sort(ret.begin(), ret.end());
   }
   else {  // KeepOriginalOrder