patch 8.2.1674: Vim9: internal error when using variable that was not set Commit: https://github.com/vim/vim/commit/f0afd9e18227d3459c888584d0658a1837d2aaf8 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Sep 13 18:57:47 2020 +0200 patch 8.2.1674: Vim9: internal error when using variable that was not set Problem: Vim9: internal error when using variable that was not set. Solution: Give a meaningful error. (closes https://github.com/vim/vim/issues/6937)

" vimrc for test_gui_init.vim

" Note that this flag must be added in the .vimrc file, before switching on
" syntax or filetype recognition (when the |gvimrc| file is sourced the system
" menu has already been loaded; the ":syntax on" and ":filetype on" commands
" load the menu too).
set guioptions+=M