vim-patch:8.2.0296: mixing up "long long" and __int64 may cause problems

Problem:    Mixing up "long long" and __int64 may cause problems. (John
            Marriott)
Solution:   Pass varnumber_T to vim_snprintf().  Add v:numbersize.
f9706e9df0

src/nvim/eval.h

@@ -142,6 +142,7 @@ typedef enum {
     VV_FALSE,
     VV_TRUE,
     VV_NULL,
+    VV_NUMBERSIZE,
     VV_VIM_DID_ENTER,
     VV_TESTING,
     VV_TYPE_NUMBER,