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/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: