patch 8.2.2159: Vim9: when declaring a list it is not allocated yet
Problem: Vim9: when declaring a list it is not allocated yet, causing a
following extend() to fail.
Solution: When fetching a variable value for a list or dict that is null
allocate the list or dict, so it can be used. (closes #7491)
diff --git a/src/version.c b/src/version.c
index 96aa9b0..c9d8665 100644
--- a/src/version.c
+++ b/src/version.c
@@ -751,6 +751,8 @@
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
+ 2159,
+/**/
2158,
/**/
2157,