Add layoutlib.jar to the classpath of adt-tests

Change-Id: Iab62c8e9849873e91640484c70110660aabd4b8e
diff --git a/tools/eclipse/plugins/com.android.ide.eclipse.tests/META-INF/MANIFEST.MF b/tools/eclipse/plugins/com.android.ide.eclipse.tests/META-INF/MANIFEST.MF
index 61e8ee4..0497d2c 100644
--- a/tools/eclipse/plugins/com.android.ide.eclipse.tests/META-INF/MANIFEST.MF
+++ b/tools/eclipse/plugins/com.android.ide.eclipse.tests/META-INF/MANIFEST.MF
@@ -18,4 +18,5 @@
 Bundle-ClassPath: kxml2-2.3.0.jar,
  .,
  layoutlib_api.jar,
- sdklib.jar
+ sdklib.jar,
+ layoutlib.jar