fix-tests
[libc] Add strlcat
[libc] Add implementations of feof, ferror and clearerr.
[libc] Add ability to generate enum types/values to HdrGen.
[libc] Make the errno macro resolve to the thread local variable directly.
[libc] Add dirent.h functions opendir, readdir, closedir and dirfd.
[libc] Add global stdout and stderr objects.
[libc] Add implementations of pthread_equal and pthread_self.