Bug 71287 Reuse editor preference has no effect in tree mode
options -> Reuse editors to show matches in workbench -> search - has no effect
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/search/JavaSearchResultPage.java
for (int i = 0; i < elements.length; i++) {
			elements[i]= roots[i].getData();
		}
		return elements;
	}
	private int getMatchCount(ITreeContentProvider cp, Object[] elements) {
		int count= 0;
		for (int j = 0; j < elements.length; j++) {
			count+= getDisplayedMatchCount(elements[j]);
			Object[] children = cp.getChildren(elements[j]);
			count+= getMatchCount(cp, children);
		}
		return count;
	}
	
	private int getMatchCount(TableViewer viewer) {
		Object[] elements=	getRootElements(viewer);
		int count= 0;
		for (int i = 0; i < elements.length; i++) {
			count+= getDisplayedMatchCount(elements[i]);
		}
		return count;
	}
	/* (non-Javadoc)
	 * @see org.eclipse.core.runtime.IAdaptable#getAdapter(java.lang.Class)
	 */
	public Object getAdapter(Class adapter) {
		if (IShowInTargetList.class.equals(adapter)) {
			return SHOW_IN_TARGET_LIST;
		}