Bug 155273 [Markers] Visibility of problems view columns should be configurable
bundles/org.eclipse.ui.ide/src/org/eclipse/ui/internal/views/markers/CachedMarkerBuilder.java
loadFilterSettings(XMLMemento.createReadRoot(new StringReader(
					mementoString)));
		} catch (WorkbenchException e) {
			StatusManager.getManager().handle(e.getStatus());
		}
	}
	/**
	 * Load the filters preference.
	 */
	private void loadFiltersPreference() {
		loadFiltersFrom(IDEWorkbenchPlugin.getDefault().getPreferenceStore()
				.getString(getMementoPreferenceName()));
		String legacyFilters = getLegacyFiltersPreferenceName();
		String migrationPreference = legacyFilters
				+ MarkerSupportInternalUtilities.MIGRATE_PREFERENCE_CONSTANT;
		if (IDEWorkbenchPlugin.getDefault().getPreferenceStore().getBoolean(
				migrationPreference))
			return;
		
		loadLegacyFiltersFrom(IDEWorkbenchPlugin.getDefault()
				.getPreferenceStore().getString(legacyFilters));
		
		IDEWorkbenchPlugin.getDefault().getPreferenceStore().setValue(
				migrationPreference, true);
	}
	/**
	 * Load the group with id from the child if there is a matching system group
	 * registered.
	 * 
	 * @param child