Rename tgbatest into tests.

* src/Makefile.am, README, configure.ac: update references.
* src/tgbatest/: rename as...
* src/tests/: ...this!

src/tests/sim2.test

@@ -0,0 +1,28 @@
+#! /bin/sh
+# -*- coding: utf-8 -*-
+# Copyright (C) 2013, 2014, 2015 Laboratoire de Recherche et Développement
+# de l'Epita (LRDE).
+#
+# This file is part of Spot, a model checking library.
+#
+# Spot is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# Spot is distributed in the hope that it will be useful, but WITHOUT
+# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+# or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
+# License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+. ./defs
+set -e
+
+../ltl2tgba -H -x -R3f -RDS '{(a&b)[*3]}<>=>G(a&!b)' > ref
+
+for i in -R3 -R3f '-R3 -RDS' '-R3f -RDS'; do
+  ../ltl2tgba -Pref -E -x $i '(X!b R F!a) U (!a | G!b)'
+done