Bug 509928: Re-activate UMLRTProtocolChangeTest

The test broke because of bug 512520 in the UML2 implementation, which
has been fixed with UML2 5.2.3. This UML2 version is released with
Neon.3.

Change-Id: Idd09308387bfd15f22df4a46e40e3800e8505a2f
Signed-off-by: Philip Langer <planger@eclipsesource.com>
diff --git a/tests/junit/umlrt/tooling/org.eclipse.papyrusrt.umlrt.tooling.compare.tests/src/org/eclipse/papyrusrt/umlrt/tooling/compare/internal/UMLRTProtocolChangeTest.java b/tests/junit/umlrt/tooling/org.eclipse.papyrusrt.umlrt.tooling.compare.tests/src/org/eclipse/papyrusrt/umlrt/tooling/compare/internal/UMLRTProtocolChangeTest.java
index b89677a..1130ed4 100644
--- a/tests/junit/umlrt/tooling/org.eclipse.papyrusrt.umlrt.tooling.compare.tests/src/org/eclipse/papyrusrt/umlrt/tooling/compare/internal/UMLRTProtocolChangeTest.java
+++ b/tests/junit/umlrt/tooling/org.eclipse.papyrusrt.umlrt.tooling.compare.tests/src/org/eclipse/papyrusrt/umlrt/tooling/compare/internal/UMLRTProtocolChangeTest.java
@@ -48,7 +48,6 @@
 import org.eclipse.papyrusrt.umlrt.tooling.compare.umlrt.internal.ProtocolChange;
 import org.eclipse.uml2.uml.Collaboration;
 import org.eclipse.uml2.uml.UMLPackage;
-import org.junit.Ignore;
 import org.junit.Test;
 
 import com.google.common.base.Function;
@@ -448,7 +447,6 @@
 	}
 
 	@Test
-	@Ignore("Failing test: see http://eclip.se/509928")
 	public void testMergeSingleProtocolMoveInTwoWayLeftToRight() throws IOException {
 		final Resource left = input.getMoveSingle1Left();
 		final Resource right = input.getMoveSingle1Right();