Updated an import to fix deprecation

DSL_SemanticAdaptation/be.uantwerpen.ansymo.semanticadaptation.tests/src/be/uantwerpen/ansymo/semanticadaptation/tests/SemanticAdaptationParsingTest.xtend

@@ -10,7 +10,7 @@ import org.junit.Test
 import org.junit.runner.RunWith
 import org.eclipse.xtext.testing.util.ParseHelper
 import com.google.inject.Inject
-import org.eclipse.xtext.junit4.validation.ValidationTestHelper
+import org.eclipse.xtext.testing.validation.ValidationTestHelper
 import be.uantwerpen.ansymo.semanticadaptation.semanticAdaptation.*
 import org.eclipse.emf.ecore.EObject
 import java.util.regex.Pattern