Apply even more fixups

- Finish cleaning up the stdio unlocked APIs
- Make __cxa_finalize() properly thread safe
- Don't log locks if threads aren't being used
- Add some more mutex guards to places using _mmi
- Specific lock names now appear in the --ftrace logs
- Fix mkdeps.com generating invalid Makefiles sometimes
- Simplify and fix bugs in the test runner infrastructure
- Fix issue where sometimes some functions wouldn't be logged

libc/stdio/ftello.c

@@ -23,7 +23,7 @@
 #include "libc/stdio/stdio.h"
 #include "libc/sysv/consts/o.h"
 
-static int64_t ftello_unlocked(FILE *f) {
+static inline int64_t ftello_unlocked(FILE *f) {
   int64_t pos;
   uint32_t skew;
   if (f->fd != -1) {
@@ -45,6 +45,7 @@ static int64_t ftello_unlocked(FILE *f) {
  *
  * @param stream is a non-null stream handle
  * @returns current byte offset from beginning, or -1 w/ errno
+ * @threadsafe
  */
 int64_t ftello(FILE *f) {
   int64_t rc;