Clean up some more null->none renames and fix the documentation. Also

change the literal syntax to `NONE:T` instead of `!T`

1 files changed, 2 insertions, 2 deletions

diff --git a/test/iterators.tm b/test/iterators.tm
index 2adcab4a..ebb040fd 100644
--- a/test/iterators.tm
+++ b/test/iterators.tm
@@ -4,7 +4,7 @@ struct Pair(x:Text, y:Text)
 func pairwise(strs:[Text] -> func(->Pair?)):
     i := 1
     return func():
-        if i + 1 > strs.length: return !Pair
+        if i + 1 > strs.length: return NONE:Pair
         i += 1
         return Pair(strs[i-1], strs[i])?
 
@@ -12,7 +12,7 @@ func range(first:Int, last:Int -> func(->Int?)):
     i := first
     return func():
         if i > last:
-            return !Int
+            return NONE:Int
         i += 1
         return (i-1)?