Bug 26979 Outline pop-up: flicker when filtering
1) open the outline pop-up (ctrl-O) 2) type in a letter ->observe that you can watch how the tree items are removed and then added again. Use of setRedraw(false/true) during filtering should avoid this flickering
org.eclipse.jdt.ui/ui/org/eclipse/jdt/ui/text/JavaSourceViewerConfiguration.java
* @since 2.0
	 */
	public IInformationControlCreator getInformationControlCreator(ISourceViewer sourceViewer) {
		return new IInformationControlCreator() {
			public IInformationControl createInformationControl(Shell parent) {
				return new DefaultInformationControl(parent, SWT.NONE, new HTMLTextPresenter(true));
				
			}
		};
	}
	private IInformationControlCreator getInformationPresenterControlCreator(ISourceViewer sourceViewer) {
		return new IInformationControlCreator() {
			public IInformationControl createInformationControl(Shell parent) {
				int shellStyle= SWT.RESIZE;
				int style= SWT.V_SCROLL | SWT.H_SCROLL;
				return new DefaultInformationControl(parent, shellStyle, style, new HTMLTextPresenter(false));
				
			}
		};
	}
	private IInformationControlCreator getOutlinePresenterControlCreator(ISourceViewer sourceViewer) {
		return new IInformationControlCreator() {
			public IInformationControl createInformationControl(Shell parent) {
				int shellStyle= SWT.RESIZE;
				int treeStyle= SWT.V_SCROLL | SWT.H_SCROLL;
				return new JavaOutlineInformationControl(parent, shellStyle, treeStyle);
			}
		};
	}