Releng: build against S-4.10M3-201811211800

- resolve compile & configuration errors

Change-Id: I84631c0645bc65956bd6feb7f241cf06f7d93e40
diff --git a/testplugins/org.eclipse.objectteams.otdt.ui.tests/.classpath b/testplugins/org.eclipse.objectteams.otdt.ui.tests/.classpath
index b05df52..324673d 100644
--- a/testplugins/org.eclipse.objectteams.otdt.ui.tests/.classpath
+++ b/testplugins/org.eclipse.objectteams.otdt.ui.tests/.classpath
@@ -1,6 +1,10 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <classpath>
-	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="src" path="src">
+		<attributes>
+			<attribute name="test" value="true"/>
+		</attributes>
+	</classpathentry>
 	<classpathentry kind="con" path="OTRE"/>
 	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
 	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/J2SE-1.5"/>