patch 8.2.3692: Vim9: cannot use :func inside a :def function Commit: https://github.com/vim/vim/commit/38453528c3372293d70c8e85471a6188749ff331 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Nov 28 22:00:12 2021 +0000 patch 8.2.3692: Vim9: cannot use :func inside a :def function Problem: Vim9: cannot use :func inside a :def function. Solution: Make it work.

" Settings for test script execution
" Always use "COMMAND.COM", don't use the value of "$SHELL".
set shell=c:\COMMAND.COM shellquote= shellxquote= shellcmdflag=/c shellredir=>
" This is used only when the +eval feature is available.
if executable("cmd.exe")
   set shell=cmd.exe
endif

source setup.vim