Bug 127629 [Markers] problems view: keep selection stable
I20050214-0010 1. Select a grouping (e.g. Java problem type) and select a marker inside 2. Switch to another grouping Selection is gone. Same when - changing filter - a build adds new marker (in a different file)
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/views/markers/internal/MarkerView.java
if (openAction != null) {
			openAction.dispose();
			copyAction.dispose();
			selectAllAction.dispose();
			deleteAction.dispose();
			revealAction.dispose();
			propertiesAction.dispose();
			clipboard.dispose();
		}
		if (showInMenu != null) {
			showInMenu.dispose();
		}
	}
	/*
	 * (non-Javadoc)
	 * 
	 * @see org.eclipse.ui.views.internal.tableview.TableView#createActions()
	 */
	protected void createActions() {
		revealAction = new ActionRevealMarker(this, getViewer());
		openAction = new ActionOpenMarker(this, getViewer());
		copyAction = new ActionCopyMarker(this, getViewer());
		copyAction.setClipboard(clipboard);
		copyAction.setProperties(getSortingFields());
		pasteAction = new ActionPasteMarker(this, getViewer());
		pasteAction.setClipboard(clipboard);
		pasteAction.setPastableTypes(getMarkerTypes());
		deleteAction = new ActionRemoveMarker(this, getViewer());
		selectAllAction = new ActionSelectAll(this);