super(site, SearchMessages.getString("Search.FindReadReferencesInHierarchyAction.label"), new Class[] {IField.class} );
super(site, SearchMessages.getString("Search.FindReadReferencesInHierarchyAction.label"), new Class[] {IField.class, ILocalVariable.class } );
	public FindReadReferencesInHierarchyAction(IWorkbenchSite site) {		super(site, SearchMessages.getString("Search.FindReadReferencesInHierarchyAction.label"), new Class[] {IField.class} ); //$NON-NLS-1$		setToolTipText(SearchMessages.getString("Search.FindReadReferencesInHierarchyAction.tooltip")); //$NON-NLS-1$		WorkbenchHelp.setHelp(this, IJavaHelpContextIds.FIND_READ_REFERENCES_IN_HIERARCHY_ACTION);	}