patch 7.4.1154
Problem: No support for JSON.
Solution: Add jsonencode() and jsondecode(). Also add v:false, v:true,
v:null and v:none.
diff --git a/src/vim.h b/src/vim.h
index 2ebaa00..90a5353 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -1896,7 +1896,17 @@
#define VV_OPTION_OLD 60
#define VV_OPTION_TYPE 61
#define VV_ERRORS 62
-#define VV_LEN 63 /* number of v: vars */
+#define VV_FALSE 63
+#define VV_TRUE 64
+#define VV_NULL 65
+#define VV_NONE 66
+#define VV_LEN 67 /* number of v: vars */
+
+/* used for v_number in VAR_SPECIAL */
+#define VVAL_FALSE 0L
+#define VVAL_TRUE 1L
+#define VVAL_NONE 2L
+#define VVAL_NULL 3L
#ifdef FEAT_CLIPBOARD