function fnDestroy(vContent) {
				vContent = Array.isArray(vContent) ? vContent : [vContent];
				for (var i = 0; i < vContent.length; i++) {
					if (!vContent[i].isDestroyed()) {
						vContent[i].destroy();
					}
				}
			}
Takes care of async destruction of fragments created with {@link sap.ui.core.Controller.loadFragment loadFragment}

@private