patch 9.0.0027: the command line test is getting quite big

Problem:    The command line test is getting quite big.
Solution:   Move command line window tests to a separate file.
diff --git a/src/testdir/Make_all.mak b/src/testdir/Make_all.mak
index 4a2ea88..bc28632 100644
--- a/src/testdir/Make_all.mak
+++ b/src/testdir/Make_all.mak
@@ -87,6 +87,7 @@
 	test_clientserver \
 	test_close_count \
 	test_cmdline \
+	test_cmdwin \
 	test_command_count \
 	test_comments \
 	test_comparators \
@@ -345,6 +346,7 @@
 	test_clientserver.res \
 	test_close_count.res \
 	test_cmdline.res \
+	test_cmdwin.res \
 	test_command_count.res \
 	test_comments.res \
 	test_comparators.res \