Bug 18780 Deleting a member in Members view not always working
Build F2 I detected that in some cases deleting a memeber (was a method) from the Members view doesn't get removed from the list. Should fix for F3
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/browsing/MembersView.java
tbm.add(new LexicalSortingAction(getViewer(), JavaUI.ID_MEMBERS_VIEW));
		fMemberFilterActionGroup.contributeToToolBar(tbm);
	}
	
	/**
	 * Answers if the given <code>element</code> is a valid
	 * input for this part.
	 * 
	 * @param 	element	the object to test
	 * @return	<true> if the given element is a valid input
	 */
	protected boolean isValidInput(Object element) {
		if (element instanceof IType) {
			IType type= (IType)element;
			return type.isBinary() || type.getDeclaringType() == null;
		}
		return false;
	}
	
	/**
	 * Answers if the given <code>element</code> is a valid
	 * element for this part.
	 * 
	 * @param 	element	the object to test
	 * @return	<true> if the given element is a valid element
	 */
	protected boolean isValidElement(Object element) {
		if (element instanceof IMember)
			return super.isValidElement(((IMember)element).getDeclaringType());
		else if (element instanceof IImportDeclaration)