Resolve some variable hiding warnings

(C4456: variable hides previous local declaration)

src/citra_qt/camera/camera_util.cpp

@@ -175,9 +175,9 @@ std::vector<u16> Rgb2Yuv(const QImage& source, int width, int height) {
     auto dest = buffer.begin();
     bool write = false;
     int py, pu, pv;
-    for (int y = 0; y < height; ++y) {
-        for (int x = 0; x < width; ++x) {
-            QRgb rgb = source.pixel(x, y);
+    for (int j = 0; j < height; ++j) {
+        for (int i = 0; i < width; ++i) {
+            QRgb rgb = source.pixel(i, j);
             int r = qRed(rgb);
             int g = qGreen(rgb);
             int b = qBlue(rgb);

src/citra_qt/debugger/ipc/recorder.cpp

@@ -73,16 +73,16 @@ void IPCRecorderWidget::OnEntryUpdated(IPCDebugger::RequestRecord record) {
         service = QStringLiteral("%1 (%2)").arg(service, record.is_hle ? tr("HLE") : tr("LLE"));
     }
 
-    QTreeWidgetItem item{
+    QTreeWidgetItem entry{
         {QString::number(record.id), GetStatusStr(record), service, GetFunctionName(record)}};
 
     const int row_id = record.id - id_offset;
     if (ui->main->invisibleRootItem()->childCount() > row_id) {
         records[row_id] = record;
-        (*ui->main->invisibleRootItem()->child(row_id)) = item;
+        (*ui->main->invisibleRootItem()->child(row_id)) = entry;
     } else {
         records.emplace_back(record);
-        ui->main->invisibleRootItem()->addChild(new QTreeWidgetItem(item));
+        ui->main->invisibleRootItem()->addChild(new QTreeWidgetItem(entry));
     }
 
     if (record.status == IPCDebugger::RequestStatus::HLEUnimplemented ||

src/citra_qt/debugger/wait_tree.cpp

@@ -83,9 +83,9 @@ std::vector<std::unique_ptr<WaitTreeThread>> WaitTreeItem::MakeThreadItemList()
         const auto& threads =
             Core::System::GetInstance().Kernel().GetThreadManager(i).GetThreadList();
         item_list.reserve(item_list.size() + threads.size());
-        for (std::size_t i = 0; i < threads.size(); ++i) {
-            item_list.push_back(std::make_unique<WaitTreeThread>(*threads[i]));
-            item_list.back()->row = i;
+        for (std::size_t j = 0; j < threads.size(); ++j) {
+            item_list.push_back(std::make_unique<WaitTreeThread>(*threads[j]));
+            item_list.back()->row = j;
         }
     }
     return item_list;

src/citra_qt/main.cpp

@@ -1454,7 +1454,6 @@ void GMainWindow::InstallCIA(QStringList filepaths) {
     progress_bar->setMaximum(INT_MAX);
 
     QtConcurrent::run([&, filepaths] {
-        QString current_path;
         Service::AM::InstallStatus status;
         const auto cia_progress = [&](std::size_t written, std::size_t total) {
             emit UpdateProgress(written, total);

src/citra_qt/multiplayer/state.cpp

@@ -232,9 +232,8 @@ bool MultiplayerState::OnCloseRoom() {
             return true;
         }
         // Save ban list
-        if (auto room = Network::GetRoom().lock()) {
-            UISettings::values.ban_list = std::move(room->GetBanList());
-        }
+        UISettings::values.ban_list = std::move(room->GetBanList());
+
         room->Destroy();
         announce_multiplayer_session->Stop();
         LOG_DEBUG(Frontend, "Closed the room (as a server)");