patch 8.0.0499: taglist() does not prioritize tags for a buffer

Problem:    taglist() does not prioritize tags for a buffer.
Solution:   Add an optional buffer argument. (Duncan McDougall, closes #1194)
diff --git a/src/Makefile b/src/Makefile
index 3d13b85..1309a63 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -2213,6 +2213,7 @@
 	test_tabpage \
 	test_tagcase \
 	test_tagjump \
+	test_taglist \
 	test_tcl \
 	test_textobjects \
 	test_timers \