Fix statement recovery infinite loop

example/program.nub

@@ -1,17 +1,12 @@
 import c
 
-// Test
-// Test2
-// Test3
-// Test4
+/// # Documentation
+/// ## Documentation subtitle
 global func main(args: []string) {
     i = 0
     printf("%d\n", args.count)
     while i < args.count {
-        // Test
         printf("%s\n", args[i])
         i = i + 1
     }
-
-    i: string = "test"
 }