Bug 58800 NLS Search: should support search again
20040413 - do a NLS search (I got an unused key entry) - do a searh again observe: the unused key entry is doubled.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/search/JavaSearchSorter.java
private Map fLabelCache= new HashMap();
	public boolean isSorterProperty(Object element, String property) {
		return true;
	}
	
	protected String getLabel(Object element) {
		String label= (String) fLabelCache.get(element);
		if (label != null)
			return label;
		return fLabelProvider.getText(element);
	}
	/**
	 * Sets up the label provider according to the result from
	 * <code>getSortOrder()</code>
	 * @return true if the sort can proceed, false otherwise.
	 */
	protected boolean setupLabelProvider() {
		
		ISearchResultView view= SearchUI.getSearchResultView();