More tests

examples/fibi.monkey

@@ -0,0 +1,18 @@
+let fib = fn(n) {
+   if (n < 3) {
+     return 1
+   }
+   let a = 1
+   let b = 1
+   let c = 0
+   let i = 0
+   while (i < n - 2) {
+     c = a + b
+     b = a
+     a = c
+     i = i + 1
+   }
+   return a
+}
+
+print(fib(35))