vim-patch:9.0.0657: too many #ifdefs (#20506)

Problem:    Too many #ifdefs.
Solution:   Graduate the +cmdwin feature.  Now the tiny and small builds are
            equal, drop the small build.  (Martin Tournoij, closes vim/vim#11268)
7904fa420e

Accidentally forgot to mark as ported:

vim-patch:9.0.0471: no test for what patch 9.0.0469 fixes

Problem:    No test for what patch 9.0.0469 fixes.
Solution:   Add a test. (closes vim/vim#11140)
12167d8b84

src/nvim/arglist.c

@@ -1024,7 +1024,8 @@ static void do_arg_all(int count, int forceit, int keep_tabs)
     return;
   }
   if (ARGCOUNT <= 0) {
-    // Don't give an error message.  We don't want it when the ":all" command is in the .vimrc.
+    // Don't give an error message.  We don't want it when the ":all"
+    // command is in the .vimrc.
     return;
   }
   setpcmark();