commit da479c7597a61c4d50c842df21c9294bd9bf1037
author Bram Moolenaar <Bram@vim.org> Sat Apr 10 21:01:38 2021 +0200
committer Bram Moolenaar <Bram@vim.org> Sat Apr 10 21:01:38 2021 +0200
tree 44a5cbf9c031551b9fcd79f69c727d2d7566f912
parent fe95b94ffa75c4925ad16c43f94092f2b1d35fc6

patch 8.2.2750: Vim9: error for using underscore in nested function

Problem:    Vim9: error for using underscore in nested function.
Solution:   Do not consider "_" already defined. (closes #8096)

src/testdir/test_vim9_func.vim

diff --git a/src/testdir/test_vim9_func.vim b/src/testdir/test_vim9_func.vim
index 6b353dd..a97146d 100644
--- a/src/testdir/test_vim9_func.vim
+++ b/src/testdir/test_vim9_func.vim
@@ -2637,6 +2637,8 @@
         return _
       endfunc
       assert_equal('too', Oktoo())
+
+      assert_equal([[1], [2], [3]], range(3)->mapnew((_, v) => [v]->map((_, w) => w + 1)))
   END
   CheckScriptSuccess(lines)