AbstractPopup: defer final runnable execution

myFinalRunnable can contain logic which removes focus listeners (e.g. the runnable can invoke change color scheme action).
In case we're called from a focus listener, which is called from java.awt.AWTEventMulticaster,
removal of focus listeners will not have effect as the focus listeners list is copied on each modification.
So focus listeners which have already been removed, will get invoked. Hence, we defer the final runnable execution.

platform/platform-impl/src/com/intellij/ui/popup/AbstractPopup.java

@@ -1348,9 +1348,10 @@ public class AbstractPopup implements JBPopup {
       Runnable runFinal = new Runnable() {
         @Override
         public void run() {
+          //noinspection SSBasedInspection
+          SwingUtilities.invokeLater(myFinalRunnable);
           //noinspection SSBasedInspection
           SwingUtilities.invokeLater(typeAheadDone.createSetDoneRunnable());
-          myFinalRunnable.run();
           myFinalRunnable = null;
         }
       };