[xtext] Internal 2.10.x API compatibility

Change-Id: I8602aeef49e977f5292c99e9b930550cb4a05790
diff --git a/plugins/org.eclipse.emf.ecore.xcore/src/org/eclipse/emf/ecore/xcore/findrefs/XcoreReferenceFinder.java b/plugins/org.eclipse.emf.ecore.xcore/src/org/eclipse/emf/ecore/xcore/findrefs/XcoreReferenceFinder.java
index 69dcaaa..54eeaf5 100644
--- a/plugins/org.eclipse.emf.ecore.xcore/src/org/eclipse/emf/ecore/xcore/findrefs/XcoreReferenceFinder.java
+++ b/plugins/org.eclipse.emf.ecore.xcore/src/org/eclipse/emf/ecore/xcore/findrefs/XcoreReferenceFinder.java
@@ -21,12 +21,17 @@
 import org.eclipse.xtext.util.Pair;
 import org.eclipse.xtext.util.Tuples;
 
+import com.google.common.base.Predicate;
 import com.google.common.collect.Sets;
 
 public class XcoreReferenceFinder extends ReferenceFinder
 {
-  @Override
-  protected void findLocalReferencesFromElement(TargetURIs targetURIs, EObject sourceCandidate, Resource localResource,
+  /**
+  * @inheritDoc
+  * 
+  * Xtext 2.10.x
+  */
+  protected void findLocalReferencesFromElement(Predicate<URI> targetURIs, EObject sourceCandidate, Resource localResource,
       Acceptor acceptor)
   {
     super.findLocalReferencesFromElement(targetURIs, sourceCandidate, localResource, new DuplicateFilter(acceptor));