Updated expected specs

examples/pair.expected

-N 1 10 -> obj 6 29
-N 1 10 -> null 3 50
\ No newline at end of file
+NF 6 29 -> obj 6 29
+NF 8 4 -> null 3 50

examples/simple-struct.expected

-N 1 9 -> obj 4 25
-N 1 26 -> obj 4 28
-N 1 9 -> obj 5 15
-N 1 26 -> obj 5 18
+NF 4 25 -> obj 4 25
+NF 4 28 -> obj 4 28
+NF 5 15 -> obj 5 15
+NF 5 18 -> obj 5 18
 N 8 6 -> obj 4 17
 N 8 6 -> obj 5 7
 N 8 6 -> null 4 31
\ No newline at end of file