patch 8.0.1636: no test for term_dumpload() and term_dumpdiff()

Problem:    No test for term_dumpload() and term_dumpdiff().
Solution:   Add tests.
diff --git a/src/version.c b/src/version.c
index b2959e3..71a67ce 100644
--- a/src/version.c
+++ b/src/version.c
@@ -767,6 +767,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1636,
+/**/
     1635,
 /**/
     1634,