Bug 44393 [Viewers] + shown in front of methods even if local types filter is on (different behaviour in outliner, members view and package explorer)
Test pass M4 - load JUnit - add an anonymous type to Assert#Assert - enable local type filter in Outliner observe: there is a plus in front of Assert which goes away when clicking on it. This might be JFace related but I would prefer that the plus is removed when the filter is switched on. - close Outliner - open Outliner observe: there isn't any plus sign in front of Assert - open Java Browsing perspective - enable local type filter in members view - select Assert class in Types view observe: the constructor Assert has a plus sign in front which goes away when clicking on it. - switch to another class - switch back to Assert observe: the constructor again has a plus sign in front. This is really annoying. The members view should at least behave like the outliner. - switch to package explorer - expand Assert - toggle local type filter observe: plus sign is added and removed correctly.
bundles/org.eclipse.jface/src/org/eclipse/jface/viewers/AbstractTreeViewer.java
*           the item
	 * @return <code>true</code> if the item is considered expanded and
	 *         <code>false</code> if collapsed
	 */
	protected abstract boolean getExpanded(Item item);
	/**
	 * Returns a list of elements corresponding to expanded nodes in this
	 * viewer's tree, including currently hidden ones that are marked as
	 * expanded but are under a collapsed ancestor.
	 * <p>
	 * This method is typically used when preserving the interesting state of a
	 * viewer; <code>setExpandedElements</code> is used during the restore.
	 * </p>
	 * 
	 * @return the array of expanded elements
	 * @see #setExpandedElements
	 */
	public Object[] getExpandedElements() {
		ArrayList v = new ArrayList();
		internalCollectExpanded(v, getControl());
		return v.toArray();
	}
	/**
	 * Returns whether the node corresponding to the given element is expanded
	 * or collapsed.
	 * 
	 * @param element
	 *           the element
	 * @return <code>true</code> if the node is expanded, and <code>false</code>
	 *         if collapsed