Fix unknown symbol in tables mpairs iterator.

Fixes an error with mpairs iterator which was introduced with 5fbcf93860. This is used by nimforum thats why I found it. I also added a testcase for the mpairs iterator.

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/pure/collections/tables.nim b/lib/pure/collections/tables.nim
index c75386cf1..959688d6a 100644
--- a/lib/pure/collections/tables.nim
+++ b/lib/pure/collections/tables.nim
@@ -104,7 +104,7 @@ iterator mpairs*[A, B](t: var Table[A, B]): tuple[key: A, val: var B] =
   ## iterates over any (key, value) pair in the table `t`. The values
   ## can be modified.
   for h in 0..high(t.data):
-    if isFilled(t.data[h].slot): yield (t.data[h].key, t.data[h].val)
+    if isFilled(t.data[h].hcode): yield (t.data[h].key, t.data[h].val)
 
 iterator keys*[A, B](t: Table[A, B]): A =
   ## iterates over any key in the table `t`.