Print before reporting result

Might resolve the flaky wasm2js1.test_pthread_c11_threads test.

Author: kleisauke

tests/pthread/test_pthread_c11_threads.c

@@ -58,9 +58,9 @@ int main(int argc, char* argv[]) {
   thrd_create(&t6, thread_main, NULL);
   thrd_detach(t6);
 
+  printf("done!\n");
 #ifdef REPORT_RESULT
   REPORT_RESULT(0);
 #endif
-  printf("done!\n");
   return 0;
 }