LSP references only returns declaration side

Consider the following unit test:

```scala
test("references with setIncludeDeclaration returns declaration site") {
withClientAndServer { (client, server) =>
val (textDoc, positions) =
raw"""
|def foo() = <>
| ↑ ↑
|def bar() = foo()
""".textDocumentAndPositions

val expectedReferences: List[Range] = List(
new Range(positions(0), positions(1)),
)

val didOpenParams = new DidOpenTextDocumentParams()
didOpenParams.setTextDocument(textDoc)
server.getTextDocumentService().didOpen(didOpenParams)

val params = new ReferenceParams()
params.setPosition(positions(0))
val context = new ReferenceContext()
context.setIncludeDeclaration(true)
params.setContext(context)
params.setTextDocument(textDoc.versionedTextDocumentIdentifier)

val references = server.getTextDocumentService().references(params).get()
assertEquals(references.asScala.map(_.getRange).toList, expectedReferences)
}
}
```

As you can see, the server doesn't actually return the reference to `foo` in `bar` in this example. It only returns the declaration site.