patch 8.0.1447: still too many old style tests

Problem:    Still too many old style tests.
Solution:   Turn a few tests into new style. (Yegappan Lakshmanan,
            closes #2509)
diff --git a/src/testdir/main.aap b/src/testdir/main.aap
index 89eae41..a4d0295 100644
--- a/src/testdir/main.aap
+++ b/src/testdir/main.aap
@@ -6,10 +6,10 @@
 
 Scripts = test1.out test2.out test3.out test6.out
 		test11.out
-		test13.out test14.out test15.out test17.out
+		test13.out test14.out test17.out
 		test18.out test21.out
 		test27.out test29.out test30.out
-		test36.out test37.out
+		test37.out
 		test39.out test42.out
 		test44.out test46.out test47.out
 		test48.out test49.out test74.out