core: Make variable shadowing a compile-time error

Now that we have most of core free of shadowing, we can enable the
warning as an error to catch anything that may be remaining and also
eliminate this class of logic bug entirely.

src/core/hle/service/vi/display/vi_display.cpp

@@ -17,8 +17,8 @@
 
 namespace Service::VI {
 
-Display::Display(u64 id, std::string name, Core::System& system)
-    : id{id}, name{std::move(name)}, vsync_event{system.Kernel()} {
+Display::Display(u64 id, std::string name_, Core::System& system)
+    : display_id{id}, name{std::move(name_)}, vsync_event{system.Kernel()} {
     Kernel::KAutoObject::Create(std::addressof(vsync_event));
     vsync_event.Initialize(fmt::format("Display VSync Event {}", id));
 }

src/core/hle/service/vi/display/vi_display.h

@@ -32,14 +32,14 @@ public:
     /// Constructs a display with a given unique ID and name.
     ///
     /// @param id   The unique ID for this display.
-    /// @param name The name for this display.
+    /// @param name_ The name for this display.
     ///
-    Display(u64 id, std::string name, Core::System& system);
+    Display(u64 id, std::string name_, Core::System& system);
     ~Display();
 
     /// Gets the unique ID assigned to this display.
     u64 GetID() const {
-        return id;
+        return display_id;
     }
 
     /// Gets the name of this display
@@ -96,7 +96,7 @@ public:
     const Layer* FindLayer(u64 layer_id) const;
 
 private:
-    u64 id;
+    u64 display_id;
     std::string name;
 
     std::vector<std::shared_ptr<Layer>> layers;

src/core/hle/service/vi/layer/vi_layer.cpp

@@ -6,7 +6,7 @@
 
 namespace Service::VI {
 
-Layer::Layer(u64 id, NVFlinger::BufferQueue& queue) : id{id}, buffer_queue{queue} {}
+Layer::Layer(u64 id, NVFlinger::BufferQueue& queue) : layer_id{id}, buffer_queue{queue} {}
 
 Layer::~Layer() = default;
 

src/core/hle/service/vi/layer/vi_layer.h

@@ -31,7 +31,7 @@ public:
 
     /// Gets the ID for this layer.
     u64 GetID() const {
-        return id;
+        return layer_id;
     }
 
     /// Gets a reference to the buffer queue this layer is using.
@@ -45,7 +45,7 @@ public:
     }
 
 private:
-    u64 id;
+    u64 layer_id;
     NVFlinger::BufferQueue& buffer_queue;
 };
 

src/core/hle/service/vi/vi.cpp

@@ -212,7 +212,7 @@ private:
 
 class IGBPConnectRequestParcel : public Parcel {
 public:
-    explicit IGBPConnectRequestParcel(std::vector<u8> buffer) : Parcel(std::move(buffer)) {
+    explicit IGBPConnectRequestParcel(std::vector<u8> buffer_) : Parcel(std::move(buffer_)) {
         Deserialize();
     }
 
@@ -274,8 +274,8 @@ private:
 
 class IGBPSetPreallocatedBufferRequestParcel : public Parcel {
 public:
-    explicit IGBPSetPreallocatedBufferRequestParcel(std::vector<u8> buffer)
-        : Parcel(std::move(buffer)) {
+    explicit IGBPSetPreallocatedBufferRequestParcel(std::vector<u8> buffer_)
+        : Parcel(std::move(buffer_)) {
         Deserialize();
     }
 
@@ -312,7 +312,7 @@ protected:
 
 class IGBPCancelBufferRequestParcel : public Parcel {
 public:
-    explicit IGBPCancelBufferRequestParcel(std::vector<u8> buffer) : Parcel(std::move(buffer)) {
+    explicit IGBPCancelBufferRequestParcel(std::vector<u8> buffer_) : Parcel(std::move(buffer_)) {
         Deserialize();
     }
 
@@ -338,7 +338,7 @@ protected:
 
 class IGBPDequeueBufferRequestParcel : public Parcel {
 public:
-    explicit IGBPDequeueBufferRequestParcel(std::vector<u8> buffer) : Parcel(std::move(buffer)) {
+    explicit IGBPDequeueBufferRequestParcel(std::vector<u8> buffer_) : Parcel(std::move(buffer_)) {
         Deserialize();
     }
 
@@ -360,8 +360,8 @@ public:
 
 class IGBPDequeueBufferResponseParcel : public Parcel {
 public:
-    explicit IGBPDequeueBufferResponseParcel(u32 slot, Service::Nvidia::MultiFence& multi_fence)
-        : slot(slot), multi_fence(multi_fence) {}
+    explicit IGBPDequeueBufferResponseParcel(u32 slot_, Nvidia::MultiFence& multi_fence_)
+        : slot(slot_), multi_fence(multi_fence_) {}
 
 protected:
     void SerializeData() override {
@@ -377,7 +377,7 @@ protected:
 
 class IGBPRequestBufferRequestParcel : public Parcel {
 public:
-    explicit IGBPRequestBufferRequestParcel(std::vector<u8> buffer) : Parcel(std::move(buffer)) {
+    explicit IGBPRequestBufferRequestParcel(std::vector<u8> buffer_) : Parcel(std::move(buffer_)) {
         Deserialize();
     }
 
@@ -391,7 +391,7 @@ public:
 
 class IGBPRequestBufferResponseParcel : public Parcel {
 public:
-    explicit IGBPRequestBufferResponseParcel(NVFlinger::IGBPBuffer buffer) : buffer(buffer) {}
+    explicit IGBPRequestBufferResponseParcel(NVFlinger::IGBPBuffer buffer_) : buffer(buffer_) {}
     ~IGBPRequestBufferResponseParcel() override = default;
 
 protected:
@@ -408,7 +408,7 @@ protected:
 
 class IGBPQueueBufferRequestParcel : public Parcel {
 public:
-    explicit IGBPQueueBufferRequestParcel(std::vector<u8> buffer) : Parcel(std::move(buffer)) {
+    explicit IGBPQueueBufferRequestParcel(std::vector<u8> buffer_) : Parcel(std::move(buffer_)) {
         Deserialize();
     }
 
@@ -470,7 +470,7 @@ private:
 
 class IGBPQueryRequestParcel : public Parcel {
 public:
-    explicit IGBPQueryRequestParcel(std::vector<u8> buffer) : Parcel(std::move(buffer)) {
+    explicit IGBPQueryRequestParcel(std::vector<u8> buffer_) : Parcel(std::move(buffer_)) {
         Deserialize();
     }
 
@@ -484,7 +484,7 @@ public:
 
 class IGBPQueryResponseParcel : public Parcel {
 public:
-    explicit IGBPQueryResponseParcel(u32 value) : value(value) {}
+    explicit IGBPQueryResponseParcel(u32 value_) : value{value_} {}
     ~IGBPQueryResponseParcel() override = default;
 
 protected: