patch 8.2.1773: crash when calling mapset() with a list as first argument
Problem: Crash when calling mapset() with a list as first argument.
Solution: Check for NULL. (closes #7040)
diff --git a/src/testdir/test_maparg.vim b/src/testdir/test_maparg.vim
index ea921d6..285474d 100644
--- a/src/testdir/test_maparg.vim
+++ b/src/testdir/test_maparg.vim
@@ -238,6 +238,8 @@
iunmap K
let &cpo = cpo_save
bwipe!
+
+ call assert_fails('call mapset([], v:false, {})', 'E730:')
endfunc
func Check_ctrlb_map(d, check_alt)