patch 8.2.3036: Vim9: builtin function arguments not checked at compile time Commit: https://github.com/vim/vim/commit/7237cab8f1d1a4391372cafdb57f2d97f3b32d05 Author: Yegappan Lakshmanan <yegappan@yahoo.com> Date: Tue Jun 22 19:52:27 2021 +0200 patch 8.2.3036: Vim9: builtin function arguments not checked at compile time Problem: Vim9: builtin function arguments not checked at compile time. Solution: Add more argument type specs. Check arguments to test_setmouse() and test_gui_mouse_event(). (Yegappan Lakshmanan, closes #8425)

Tests for file with some lines ending in CTRL-M, some not

STARTTEST
:set ta tx
:e!
:$-3,$w! test.out
:qa!
ENDTEST

this lines ends in a
this one doesn't
this one does
and the last one doesn't