Stabilize Test

A slight variance on this number is acceptable, it should be using
extremelyFuzzyCompare like the rest of the checks on that property.

Task-number: QTBUG-35470
Change-Id: I9114a3a5d3bbc3c63253320637f7af1e5f21a896
Reviewed-by: Robin Burchell <robin+qt@viroteck.net>

tests/auto/particles/qquicktrailemitter/tst_qquicktrailemitter.cpp

@@ -86,7 +86,7 @@ void tst_qquicktrailemitter::test_basic()
         QVERIFY(myFuzzyLEQ(d->t, ((qreal)system->timeInt/1000.0)));
     }
 
-    QCOMPARE(system->groupData[1]->size(), 500);
+    QVERIFY(extremelyFuzzyCompare(system->groupData[1]->size(), 500, 10));
     foreach (QQuickParticleData *d, system->groupData[1]->data) {
         if (d->t == -1)
             continue; //Particle data unused