patch 8.1.0377: xdiff doesn't use the Vim memory allocation functions
Problem: Xdiff doesn't use the Vim memory allocation functions.
Solution: Change the xdl_ defines. Check for out-of-memory. Rename
"ignored" to "vim_ignored".
diff --git a/src/globals.h b/src/globals.h
index 3f5b61f..511479d 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -1621,8 +1621,8 @@
* can't do anything useful with the value. Assign to this variable to avoid
* the warning.
*/
-EXTERN int ignored;
-EXTERN char *ignoredp;
+EXTERN int vim_ignored;
+EXTERN char *vim_ignoredp;
#ifdef FEAT_EVAL
/* set by alloc_fail(): ID */