vim-patch:8.1.{0849,1001}: 'cursorline' highlight #9757

- Lua test correctly fails when 8.1.0849 is reverted.
- 8.1.1001 bug does not manifest in Neovim.

vim-patch:8.1.0849: cursorline highlight is not always updated
Problem:    Cursorline highlight is not always updated.
Solution:   Set w_last_cursorline when redrawing.  Fix resetting cursor flags
            when using the popup menu.
c07ff5c60a

vim-patch:8.1.1001: Visual area not correct when using 'cursorline'
Problem:    Visual area not correct when using 'cursorline'.
Solution:   Update w_last_cursorline also in Visual mode. (Hirohito Higashi,
            closes vim/vim#4086)
8156ed3755

test/functional/example_spec.lua

@@ -17,7 +17,7 @@ describe('example', function()
     } )
   end)
 
-  it("works with buffer switch and 'hidden'", function()
+  it('screen test', function()
     -- Do some stuff.
     feed('iline1<cr>line2<esc>')