fix issues with debug.zig

- Use sys_*stat*64 instead of sys_*stat* where appropriate
- Fix overflow when calculating atime, ctime and mtime on File.stat()
- Fix compilation error casting getEndPos to usize.
108a51b110Robin Voetter committed on 8/29/2019, 8:34:05 AMparentb3ac323
4 files changedLine totals unavailable