Bug 62896 [misc] Quick Outline should not show override indicators if decorator disabled
I20040519 The quick outline shows override indicators no matter whether the Override indicator decorator is enabled in the prefs or not. We should only install the decorator if the prefs says so since this is a performance saver.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/text/JavaOutlineInformationControl.java
private boolean fShowDefiningType;
		private OutlineLabelProvider() {
			super(AppearanceAwareLabelProvider.DEFAULT_TEXTFLAGS |  JavaElementLabels.F_APP_TYPE_SIGNATURE, AppearanceAwareLabelProvider.DEFAULT_IMAGEFLAGS);
		}
		
		/*
		 * @see ILabelProvider#getText
		 */ 	
		public String getText(Object element) {
			String text= super.getText(element);
			if (fShowDefiningType) {
				try {
					IType type= getDefiningType(element);
					if (type != null) {
						StringBuffer buf= new StringBuffer(super.getText(type));
						buf.append(JavaElementLabels.CONCAT_STRING);
						buf.append(text);
						return buf.toString();			
					}
				} catch (JavaModelException e) {
				}