WIP: Scopes weren't tracking their content sizes

'print' no longer segfaults from a long chain of indirect memory frees.

It still doesn't work though, which is odd.

scripts/fib.toy

@@ -1,15 +0,0 @@
-//TODO: Not yet functional
-
-//example of the fibonacci sequence
-fn fib(n: int) {
-	if (n < 2) return n;
-	return fib(n-1) + fib(n-2);
-}
-
-//TODO: type coercion syntax hasn't been decided on yet, but it will be needed
-for (var i = 1; i <= 10; i++) {
-	print i .. ":" .. fib(i);
-}
-
-//Note to my future self: yes, the base case in 'fib()' is 'n < 2', stop second guessing yourself!
-//Note to my past self: don't tell me what to do!