InputCommon: Enable ARC for obj-c++

Source/Core/InputCommon/CMakeLists.txt

@@ -124,6 +124,9 @@ elseif(APPLE)
     ${FORCEFEEDBACK_LIBRARY}
     ${IOK_LIBRARY}
   )
+  target_compile_options(inputcommon PRIVATE
+    -fobjc-arc
+  )
 elseif(X11_FOUND)
   target_sources(inputcommon PRIVATE
     ControllerInterface/Xlib/XInput2.cpp

Source/Core/InputCommon/ControllerInterface/Quartz/QuartzKeyboardAndMouse.mm

@@ -149,7 +149,7 @@ KeyboardAndMouse::KeyboardAndMouse(void* view)
   AddCombinedInput("Shift", {"Left Shift", "Right Shift"});
   AddCombinedInput("Ctrl", {"Left Control", "Right Control"});
 
-  NSView* cocoa_view = reinterpret_cast<NSView*>(view);
+  NSView* cocoa_view = (__bridge NSView*)view;
 
   // PopulateDevices may be called on the Emuthread, so we need to ensure that
   // these UI APIs are only ever called on the main thread.