Update jdt.core to I20150916-2000 for Neon M2
- fix compile error after method was added in base
diff --git a/plugins/org.eclipse.objectteams.otdt.jdt.ui/src/org/eclipse/objectteams/otdt/internal/ui/text/OutlineAdaptor.java b/plugins/org.eclipse.objectteams.otdt.jdt.ui/src/org/eclipse/objectteams/otdt/internal/ui/text/OutlineAdaptor.java
index 173b193..1268352 100644
--- a/plugins/org.eclipse.objectteams.otdt.jdt.ui/src/org/eclipse/objectteams/otdt/internal/ui/text/OutlineAdaptor.java
+++ b/plugins/org.eclipse.objectteams.otdt.jdt.ui/src/org/eclipse/objectteams/otdt/internal/ui/text/OutlineAdaptor.java
@@ -82,7 +82,7 @@
 			}					
 			return children;
 		}
-		getChildren <- replace getChildren;
+		Object[] getChildren(Object element) <- replace Object[] getChildren(Object element);
 		
 		boolean showRoleFiles() -> boolean isShowingInheritedMembers();