various fixes

- removed experimental test lib
- fixed watch not outputting errors
- updated examples
- added TODOs for when standard is made public

example/simple/main.c

@@ -1,8 +1,9 @@
 #include <stdio.h>
 
 int main() {
-  int a;
-  printf("hello, world!! %d\n", a);
+  int a = 3;
+  printf("hello, world!\n");
+  printf("a: %d\n", a);
 }
 
 int hello = 35;