patch 8.0.0684: old style tests are not nice

Problem:    Old style tests are not nice.
Solution:   Turn two tests into new style. (pschuh, closes #1797)
diff --git a/src/Makefile b/src/Makefile
index 10049df..2df82ec 100644
--- a/src/Makefile
+++ b/src/Makefile
@@ -2089,8 +2089,8 @@
 	test50 test51 test52 test53 test54 test55 test56 test57 test59 \
 	test60 test64 test66 test67 test68 test69 \
 	test70 test72 test73 test74 test75 test77 test78 test79 \
-	test80 test82 test83 test84 test85 test86 test87 test88 \
-	test90 test91 test94 test95 test97 test98 test99 \
+	test80 test83 test84 test85 test86 test87 test88 \
+	test91 test94 test95 test97 test98 test99 \
 	test100 test101 test103 test104 test107 test108:
 	cd testdir; rm -f $@.out; $(MAKE) -f Makefile $@.out VIMPROG=../$(VIMTARGET) $(GUI_TESTARG) SCRIPTSOURCE=../$(SCRIPTSOURCE)
 
@@ -2207,6 +2207,7 @@
 	test_search \
 	test_searchpos \
 	test_set \
+	test_sha256 \
 	test_signs \
 	test_smartindent \
 	test_sort \
@@ -2233,6 +2234,7 @@
 	test_unlet \
 	test_usercommands \
 	test_utf8 \
+	test_utf8_comparisons \
 	test_viminfo \
 	test_vimscript \
 	test_visual \