The `wbformatvalue` API has an `options` parameter that allows users to specify the `FormatterOptions` that will be used to format the value, as JSON. Several of Wikibase’s value formatters don’t really validate these options, so if an API user puts garbage in them, they can provoke various `TypeError`s,
The purpose of this task is to find affected formatters and options, so that we can fix them later.
Possible investigation approaches: go through all `ValueFormatters` subclasses, or go through all `FormatterOptions::getOption()` callers. Not sure which is nicer / easier to do.
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For example, `LatLongFormatter` has options to customize the strings used for N/E/S/W, °/'/", set the format to float/dms/dm/dd and determine the floating point precision, where to put spacing, whether to use -1° or 1° S, and what the separator between latitude and longitude is. (Don’t ask me why this class is so amazingly configurable.) By setting the “north” option to an int instead, we get a type error.
```
api.php?action=wbformatvalue&format=json&generate=text%2Fplain&datavalue=%7B%0A%20%20%22value%22%3A%20%7B%0A%20%20%20%20%22latitude%22%3A%2027.988055555556%2C%0A%20%20%20%20%22longitude%22%3A%2086.925277777778%2C%0A%20%20%20%20%22altitude%22%3A%20null%2C%0A%20%20%20%20%22precision%22%3A%200.00027777777777778%2C%0A%20%20%20%20%22globe%22%3A%20%22http%3A%2F%2Fwww.wikidata.org%2Fentity%2FQ2%22%0A%20%20%7D%2C%0A%20%20%22type%22%3A%20%22globecoordinate%22%0A%7D%0A&options=%7B%22north%22%3A%201%7D&formatversion=2
datavalue={
"value": {
"latitude": 27.988055555556,
"longitude": 86.925277777778,
"altitude": null,
"precision": 0.00027777777777778,
"globe": "http://www.wikidata.org/entity/Q2"
},
"type": "globecoordinate"
}
options={"north": 1}
```
> Exception caught: DataValues\\Geo\\Formatters\\LatLongFormatter::makeDirectionalIfNeeded(): Argument #2 ($positiveSymbol) must be of type string, int given