vim-patch:8.2.0385: menu functionality insufficiently tested

Problem:    Menu functionality insufficiently tested.
Solution:   Add tests.  Add menu_info(). (Yegappan Lakshmanan, closes vim/vim#5760)
0eabd4dc8f

Omit feedkeys() change: even if "L" flag is implemented it will likely
use input_enqueue(), which already checks for interrupts.

Omit Test_mouse_popup_menu(): already tested in Lua.

src/nvim/eval.lua

@@ -264,6 +264,7 @@ return {
     matchstrpos={args={2,4}, base=1},
     max={args=1, base=1},
     menu_get={args={1, 2}},
+    menu_info={args={1, 2}, base=1},
     min={args=1, base=1},
     mkdir={args={1, 3}, base=1},
     mode={args={0, 1}, base=1},