patch 8.0.1186: still quite a few old style tests

Problem:    Still quite a few old style tests.
Solution:   Convert old to new style tests. (Yegappan Lakshmanan)
            Avoid ringing the bell while running tests.
diff --git a/src/testdir/Make_all.mak b/src/testdir/Make_all.mak
index e27ee93..eb13761 100644
--- a/src/testdir/Make_all.mak
+++ b/src/testdir/Make_all.mak
@@ -14,9 +14,6 @@
 # Tests that run on all systems.
 SCRIPTS_ALL = \
 	test3.out \
-	test4.out \
-	test5.out \
-	test7.out \
 	test8.out \
 	test14.out \
 	test15.out \
@@ -24,7 +21,6 @@
 	test20.out \
 	test28.out \
 	test29.out \
-	test31.out \
 	test34.out \
 	test36.out \
 	test37.out \
@@ -36,7 +32,6 @@
 	test45.out \
 	test48.out \
 	test55.out \
-	test60.out \
 	test64.out \
 	test66.out \
 	test68.out \
@@ -89,7 +84,6 @@
 	test32.out \
 	test59.out \
 	test72.out \
-	test78.out \
 	test83.out
 
 
@@ -125,6 +119,7 @@
 	    test_digraph.res \
 	    test_display.res \
 	    test_edit.res \
+	    test_exists.res \
 	    test_farsi.res \
 	    test_file_size.res \
 	    test_fnameescape.res \
@@ -196,6 +191,7 @@
 	    test_vimscript.res \
 	    test_visual.res \
 	    test_winbar.res \
+	    test_winbuf_close.res \
 	    test_window_id.res \
 	    test_windows_home.res \
 	    test_writefile.res \
@@ -207,6 +203,4 @@
 # Explicit dependencies.
 test49.out: test49.vim
 
-test60.out: test60.vim
-
 test_options.res test_alot.res: opt_test.vim