[501740] Performance of UML definition look-up in static profiles

Performance generally is sufficiently improved that a 10x factor is
borderline to be expected when using the OperationContext.
An 8x factor improvement is now more reasonable to expect.
diff --git a/tests/org.eclipse.uml2.uml.tests/src/org/eclipse/uml2/uml/bug/tests/Bug497359Test.java b/tests/org.eclipse.uml2.uml.tests/src/org/eclipse/uml2/uml/bug/tests/Bug497359Test.java
index b281e25..d7cc88f 100644
--- a/tests/org.eclipse.uml2.uml.tests/src/org/eclipse/uml2/uml/bug/tests/Bug497359Test.java
+++ b/tests/org.eclipse.uml2.uml.tests/src/org/eclipse/uml2/uml/bug/tests/Bug497359Test.java
@@ -71,7 +71,7 @@
 		// There is only the one
 		final Profile profile = fixture.getAppliedProfiles().get(0);
 		
-		runProfileOperationExperiment("reapply profile", 10, new Runnable() {
+		runProfileOperationExperiment("reapply profile", 8, new Runnable() {
 			
 			public void run() {
 				fixture.applyProfile(profile);