patch 8.2.0818: Vim9: using a discovery phase doesn't work well Commit: https://github.com/vim/vim/commit/822ba24743af9ee1b5e7f656a7a61a38f3638bca Author: Bram Moolenaar <Bram@vim.org> Date: Sun May 24 23:00:18 2020 +0200 patch 8.2.0818: Vim9: using a discovery phase doesn't work well Problem: Vim9: using a discovery phase doesn't work well. Solution: Remove the discovery phase, instead compile a function only when it is used. Add :defcompile to compile def functions earlier.

" Tests for :undo

func Test_ex_undo()
  new ex-undo
  setlocal ul=10
  exe "normal ione\n\<Esc>"
  setlocal ul=10
  exe "normal itwo\n\<Esc>"
  setlocal ul=10
  exe "normal ithree\n\<Esc>"
  call assert_equal(4, line('$'))
  undo
  call assert_equal(3, line('$'))
  undo 1
  call assert_equal(2, line('$'))
  undo 0
  call assert_equal(1, line('$'))
  quit!
endfunc