patch 8.2.0349: Vim9: constant expression not well tested Commit: https://github.com/vim/vim/commit/6d69bf602b4ebdb195f02953a0b33c91ec08e599 Author: Bram Moolenaar <Bram@vim.org> Date: Tue Mar 3 19:02:12 2020 +0100 patch 8.2.0349: Vim9: constant expression not well tested Problem: Vim9: constant expression not well tested. Solution: Add tests for "if" with constant expression.

" Provide 'PrintVer' command to print the interface versions.

func s:print_ver(lang, ...)
  if has(a:lang)
    exec a:lang join(a:000)
  else
    echo 'N/A'
  endif
  echo ''
endfunc

command -nargs=+ PrintVer call <SID>print_ver(<f-args>)