Move away of deprecated ViewerSorter.

Change-Id: I25eb67a654dba474d6cec06a84fb3dc2e2df7bae
Signed-off-by: Alexander Kurtakov <akurtako@redhat.com>

bundles/org.eclipse.e4.tools.context.spy/src/org/eclipse/e4/tools/context/spy/ContextSpyPart.java

diff --git a/bundles/org.eclipse.e4.tools.context.spy/src/org/eclipse/e4/tools/context/spy/ContextSpyPart.java b/bundles/org.eclipse.e4.tools.context.spy/src/org/eclipse/e4/tools/context/spy/ContextSpyPart.java
index 5386b5c..537bb6b 100644
--- a/bundles/org.eclipse.e4.tools.context.spy/src/org/eclipse/e4/tools/context/spy/ContextSpyPart.java
+++ b/bundles/org.eclipse.e4.tools.context.spy/src/org/eclipse/e4/tools/context/spy/ContextSpyPart.java
@@ -33,7 +33,7 @@
 import org.eclipse.jface.viewers.IStructuredSelection;
 import org.eclipse.jface.viewers.SelectionChangedEvent;
 import org.eclipse.jface.viewers.TreeViewer;
-import org.eclipse.jface.viewers.ViewerSorter;
+import org.eclipse.jface.viewers.ViewerComparator;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.custom.SashForm;
 import org.eclipse.swt.events.KeyAdapter;
@@ -178,7 +178,7 @@
 		treeContentProvider = ContextInjectionFactory.make(ContextSpyProvider.class, ctx);
 		contextTreeViewer.setContentProvider(treeContentProvider);
 		contextTreeViewer.setLabelProvider(treeContentProvider);
-		contextTreeViewer.setSorter(new ViewerSorter());
+		contextTreeViewer.setComparator(new ViewerComparator());
 
 		// tv.setInput(a);
 		contextTreeViewer.setInput(ContextSpyHelper.getAllBundleContexts());