Same as realPathFile except absolute_path is asserted to be an absolute
path.
This function has limited platform support, and using it can lead to unnecessary failures and race conditions. It is generally advisable to avoid this function entirely.
See also:
realPathFile.realPathFileAlloc.pub fn realPathFileAbsolute(io: Io, absolute_path: []const u8, out_buffer: []u8) RealPathFileError!usize
pub fn realPathFileAbsolute(io: Io, absolute_path: []const u8, out_buffer: []u8) RealPathFileError!usize {
assert(path.isAbsolute(absolute_path));
return io.vtable.dirRealPathFile(io.userdata, .cwd(), absolute_path, out_buffer);
}