patch 8.2.4224: Vim9: no error when using a number for map() second argument Commit: https://github.com/vim/vim/commit/1080c48ec8d672d7e9fbefb5a1255c9df09a2884 Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jan 26 18:26:21 2022 +0000 patch 8.2.4224: Vim9: no error when using a number for map() second argument Problem: Vim9: no error when using a number for map() second argument Solution: Disallow number to string conversion. (closes https://github.com/vim/vim/issues/9630)