free_aligned_sized(), which are present
in C23. This means that user code can start to use them without checking
for C23 support everywhere first.
It also means we can use them internally in GSlice to get a bit of performance for the code which still uses it.
: Specifically, section 184.108.40.206 of the latest C23 draft at https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3088.pdf.
Signed-off-by: Philip Withnall email@example.com