UnsupportedOperationException due to call to o.a.l.q.f.FunctionValues.floatVal [LUCENE-8674]

Requesting the following URL causes Solr to return an HTTP 500 error response:

```
http://localhost:8983/solr/films/select?fq={!frange%20l=10%20u=100}or_version_s,directed_by
```

The error response seems to be caused by the following uncaught exception:

```
java.lang.UnsupportedOperationException
at org.apache.lucene.queries.function.FunctionValues.floatVal(FunctionValues.java:47)
at org.apache.lucene.queries.function.FunctionValues$3.matches(FunctionValues.java:188)
at org.apache.lucene.queries.function.ValueSourceScorer$1.matches(ValueSourceScorer.java:53)
at org.apache.lucene.search.TwoPhaseIterator$TwoPhaseIteratorAsDocIdSetIterator.doNext(TwoPhaseIterator.java:89)
at org.apache.lucene.search.TwoPhaseIterator$TwoPhaseIteratorAsDocIdSetIterator.nextDoc(TwoPhaseIterator.java:77)
at org.apache.lucene.search.Weight$DefaultBulkScorer.scoreAll(Weight.java:261)
at org.apache.lucene.search.Weight$DefaultBulkScorer.score(Weight.java:214)
at org.apache.lucene.search.BulkScorer.score(BulkScorer.java:39)
at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:652)
at org.apache.lucene.search.IndexSearcher.search(IndexSearcher.java:443)
at org.apache.solr.search.DocSetUtil.createDocSetGeneric(DocSetUtil.java:151)
at org.apache.solr.search.DocSetUtil.createDocSet(DocSetUtil.java:140)
at org.apache.solr.search.SolrIndexSearcher.getDocSetNC(SolrIndexSearcher.java:1177)
at org.apache.solr.search.SolrIndexSearcher.getPositiveDocSet(SolrIndexSearcher.java:817)
at org.apache.solr.search.SolrIndexSearcher.getProcessedFilter(SolrIndexSearcher.java:1025)
at org.apache.solr.search.SolrIndexSearcher.getDocListNC(SolrIndexSearcher.java:1540)
at org.apache.solr.search.SolrIndexSearcher.getDocListC(SolrIndexSearcher.java:1420)
at org.apache.solr.search.SolrIndexSearcher.search(SolrIndexSearcher.java:567)
at org.apache.solr.handler.component.QueryComponent.doProcessUngroupedSearch(QueryComponent.java:1434)
```

Sadly, I can't understand the logic of this code well enough to give any insights.

To set up an environment to reproduce this bug, follow the description in the ‘Environment’ field.

We found this issue and \~70 more like this using [Diffblue Microservices Testing](https://www.diffblue.com/labs/?utm_source=solr-br). Find more information on this [fuzz testing campaign](https://www.diffblue.com/blog/2018/12/19/diffblue-microservice-testing-a-sneak-peek-at-our-early-product-and-results?utm_source=solr-br).

---
Migrated from [LUCENE-8674](https://issues.apache.org/jira/browse/LUCENE-8674) by Johannes Kloos, updated Mar 10 2020
Environment:
```
h1. Steps to reproduce

* Use a Linux machine.
* Build commit {{ea2c8ba}} of Solr as described in the section below.
* Build the films collection as described below.
* Start the server using the command {{./bin/solr start -f -p 8983 -s /tmp/home}}
* Request the URL given in the bug description.

h1. Compiling the server

{noformat}
git clone https://github.com/apache/lucene-solr
cd lucene-solr
git checkout ea2c8ba
ant compile
cd solr
ant server
{noformat}

h1. Building the collection and reproducing the bug

We followed [Exercise 2|http://lucene.apache.org/solr/guide/7_5/solr-tutorial.html#exercise-2] from the [Solr Tutorial|http://lucene.apache.org/solr/guide/7_5/solr-tutorial.html].

{noformat}
mkdir -p /tmp/home
echo '' > /tmp/home/solr.xml
{noformat}

In one terminal start a Solr instance in foreground:
{noformat}
./bin/solr start -f -p 8983 -s /tmp/home
{noformat}

In another terminal, create a collection of movies, with no shards and no replication, and initialize it:

{noformat}
bin/solr create -c films
curl -X POST -H 'Content-type:application/json' --data-binary '{"add-field": {"name":"name", "type":"text_general", "multiValued":false, "stored":true}}' http://localhost:8983/solr/films/schema
curl -X POST -H 'Content-type:application/json' --data-binary '{"add-copy-field" : {"source":"*","dest":"_text_"}}' http://localhost:8983/solr/films/schema
./bin/post -c films example/films/films.json
curl -v “URL_BUG”
{noformat}

Please check the issue description below to find the “URL_BUG” that will allow you to reproduce the issue reported.

```

Reproduce the failure using the documented Solr setup and the provided request URL on commit ea2c8ba. Start with org.apache.lucene.queries.function.FunctionValues.floatVal and the matches path in FunctionValues.java, then trace ValueSourceScorer; done means the request no longer returns HTTP 500 or the uncaught UnsupportedOperationException.

Written by the indexing model from the issue text.