[common] replace Common::BitCast with libc++ provided one (#2774)

Signed-off-by: lizzie <lizzie@eden-emu.dev>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/2774
Reviewed-by: MaranBr <maranbr@eden-emu.dev>
Reviewed-by: crueter <crueter@eden-emu.dev>
Co-authored-by: lizzie <lizzie@eden-emu.dev>
Co-committed-by: lizzie <lizzie@eden-emu.dev>

src/common/overflow.h

@@ -8,7 +8,8 @@
 
 #include <algorithm>
 #include <type_traits>
-#include "bit_cast.h"
+#include <numeric>
+#include <bit>
 
 namespace Common {
 
@@ -16,11 +17,9 @@ template <typename T>
     requires(std::is_integral_v<T> && std::is_signed_v<T>)
 inline T WrappingAdd(T lhs, T rhs) {
     using U = std::make_unsigned_t<T>;
-
-    U lhs_u = BitCast<U>(lhs);
-    U rhs_u = BitCast<U>(rhs);
-
-    return BitCast<T>(lhs_u + rhs_u);
+    U lhs_u = std::bit_cast<U>(lhs);
+    U rhs_u = std::bit_cast<U>(rhs);
+    return std::bit_cast<T>(lhs_u + rhs_u);
 }
 
 template <typename T>