patch 8.1.1140: not easy to find out what neighbors a window has commit https://github.com/vim/vim/commit/46ad288b9b2a6eb0430cf802ff5ce68a58629897 Author: Bram Moolenaar <Bram@vim.org> Date: Mon Apr 8 20:01:47 2019 +0200 patch 8.1.1140: not easy to find out what neighbors a window has Problem: Not easy to find out what neighbors a window has. Solution: Add more arguments to winnr(). (Yegappan Lakshmanan, closes https://github.com/vim/vim/issues/3993)

" Tests for saving/loading a file with some lines ending in
" CTRL-M, some not
func Test_lineending()
  let l = ["this line ends in a\<CR>",
	      \ "this one doesn't",
	      \ "this one does\<CR>",
	      \ "and the last one doesn't"]
  set ta tx
  enew!
  call append(0, l)
  $delete
  write Xfile1
  bwipe Xfile1
  edit Xfile1
  let t = getline(1, '$')
  call assert_equal(l, t)
  new | only
  call delete('Xfile1')
endfunc