patch 8.2.1223: Vim9: invalid type error for function default value Commit: https://github.com/vim/vim/commit/e30f64b4b551bb00318dc09c2f13ecd3d711119a Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jul 15 19:48:20 2020 +0200 patch 8.2.1223: Vim9: invalid type error for function default value Problem: Vim9: invalid type error for function default value. Solution: Use right argument index. (closes https://github.com/vim/vim/issues/6458)