fnIsUnavailableAction = function(sSemanticObject, sAction) {
								return !!oUnavailableActions && !!oUnavailableActions[sSemanticObject] && oUnavailableActions[sSemanticObject].indexOf(sAction) > -1;
							}
Retrieves the actual targets for the navigation of the link. This uses the UShell loaded by the {@link sap.ui.mdc.link.Factory} to retrieve
the navigation targets from the FLP service.
@private
@param {string} sAppStateKey key of the appstate (not used yet)
@param {Object} oSemanticAttributes calculated by _calculateSemanticAttributes
@param {Object} oPayload given by the application
@param {Object} oInfoLog of type {@link sap.ui.mdc.link.Log} - the corresponding InfoLog of the Link
@returns {Promise} resolving into availableAtions and ownNavigation containing an array of {@link sap.ui.mdc.link.LinkItem}