vim-patch:7.4.944

Problem:    Writing tests for Vim script is hard.
Solution:   Add assertEqual(), assertFalse() and assertTrue() functions.  Add
            the v:errors variable.  Add the runtest script. Add a first new
            style test script.

43345546ae

src/nvim/eval.h

@@ -111,6 +111,7 @@ enum {
     VV_OPTION_NEW,
     VV_OPTION_OLD,
     VV_OPTION_TYPE,
+    VV_ERRORS,
     VV_MSGPACK_TYPES,
     VV_LEN, /* number of v: vars */
 };