function getOwnPropertySymbols() {
	return [];
}
Returns an array of an object's own symbol properties.

## Notes

-   In contrast to the built-in `Object.getOwnPropertySymbols()`, this function returns an empty array if provided `undefined` or `null`, rather than throwing an error.

@private
@param {*} value - input object
@returns {EmptyArray} a list of own symbol properties

@example
var symbols = getOwnPropertySymbols( {} );
// returns []