patch 8.1.1933: the eval.c file is too big
Problem: The eval.c file is too big.
Solution: Move code related to variables to evalvars.c. (Yegappan
Lakshmanan, closes #4868)
diff --git a/src/vim.h b/src/vim.h
index dca8748..1875e3b 100644
--- a/src/vim.h
+++ b/src/vim.h
@@ -2003,6 +2003,8 @@
#define VAR_TYPE_CHANNEL 9
#define VAR_TYPE_BLOB 10
+#define DICT_MAXNEST 100 /* maximum nesting of lists and dicts */
+
#ifdef FEAT_CLIPBOARD
/* VIM_ATOM_NAME is the older Vim-specific selection type for X11. Still