removed dep on org.eclipse.xtext.junit4

tests/org.eclipse.xsemantics.dsl.tests/META-INF/MANIFEST.MF

@@ -16,7 +16,6 @@ Require-Bundle: org.eclipse.xsemantics.dsl,
  org.eclipse.xtext.xbase.lib;bundle-version="2.13.0",
  org.eclipse.xtext.testing,
  org.eclipse.xtext.xbase.testing,
- org.eclipse.xtext.junit4,
  org.objectweb.asm;bundle-version="9.1.0";resolution:=optional
 Import-Package: org.apache.log4j,
  org.apache.log4j.spi,

tests/org.eclipse.xsemantics.dsl.tests/old-suites/suites/XsemanticsTemporarySuiteTests.java

@@ -0,0 +1,31 @@
+/*******************************************************************************
+ * Copyright (c) 2013-2017 Lorenzo Bettini.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *   Lorenzo Bettini - Initial contribution and API
+ *******************************************************************************/
+
+package org.eclipse.xsemantics.dsl.tests.suites;
+
+import org.eclipse.xsemantics.dsl.tests.XsemanticsValidatorTests;
+import org.eclipse.xsemantics.dsl.tests.generator.XsemanticsGeneratorRunnerTests;
+import org.junit.runner.RunWith;
+import org.junit.runners.Suite;
+
+/**
+ * Useful to check that tests do not have side effects on each other.
+ * 
+ * @author Lorenzo Bettini
+ */
+@RunWith(Suite.class)
+@Suite.SuiteClasses({
+	XsemanticsGeneratorRunnerTests.class,
+	XsemanticsValidatorTests.class
+})
+public class XsemanticsTemporarySuiteTests {
+
+}